Home / 107,899.20-161,848.80-105,825.60

Finding the Fourth Proportional to 107,899.20, 161,848.80 and 105,825.60

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Solution

The fourth proportional to 107,899.20, 161,848.80 and 105,825.60 is: 158,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,899.20 : 161,848.80 = 105,825.60 : x
  2. Step 2: Convert to fraction form
    107,899.20/161,848.80 = 105,825.60/x
  3. Step 3: Cross multiply
    107,899.20x = 161,848.80 × 105,825.60
  4. Step 4: Simplify right side
    107,899.20x = 17,127,746,369.28
  5. Step 5: Solve for x
    x = 17,127,746,369.28/107,899.20
  6. Step 6: Final answer
    x = 158,738.40

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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.