Home / 110,719,987.20-166,079,980.80-105,681,139.20

Finding the Fourth Proportional to 110,719,987.20, 166,079,980.80 and 105,681,139.20

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Solution

The fourth proportional to 110,719,987.20, 166,079,980.80 and 105,681,139.20 is: 158,521,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,719,987.20 : 166,079,980.80 = 105,681,139.20 : x
  2. Step 2: Convert to fraction form
    110,719,987.20/166,079,980.80 = 105,681,139.20/x
  3. Step 3: Cross multiply
    110,719,987.20x = 166,079,980.80 × 105,681,139.20
  4. Step 4: Simplify right side
    110,719,987.20x = 17,551,521,569,258,130
  5. Step 5: Solve for x
    x = 17,551,521,569,258,130/110,719,987.20
  6. Step 6: Final answer
    x = 158,521,708.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.