Home / 110,643.12-166,030.31-103,637.89

Finding the Fourth Proportional to 110,643.12, 166,030.31 and 103,637.89

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Solution

The fourth proportional to 110,643.12, 166,030.31 and 103,637.89 is: 155,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,643.12 : 166,030.31 = 103,637.89 : x
  2. Step 2: Convert to fraction form
    110,643.12/166,030.31 = 103,637.89/x
  3. Step 3: Cross multiply
    110,643.12x = 166,030.31 × 103,637.89
  4. Step 4: Simplify right side
    110,643.12x = 17,207,031,004.45
  5. Step 5: Solve for x
    x = 17,207,031,004.45/110,643.12
  6. Step 6: Final answer
    x = 155,518.31

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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.