Home / 131,681.60-181,720.01-71,253.30

Finding the Fourth Proportional to 131,681.60, 181,720.01 and 71,253.30

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Solution

The fourth proportional to 131,681.60, 181,720.01 and 71,253.30 is: 98,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,681.60 : 181,720.01 = 71,253.30 : x
  2. Step 2: Convert to fraction form
    131,681.60/181,720.01 = 71,253.30/x
  3. Step 3: Cross multiply
    131,681.60x = 181,720.01 × 71,253.30
  4. Step 4: Simplify right side
    131,681.60x = 12,948,151,248.12
  5. Step 5: Solve for x
    x = 12,948,151,248.12/131,681.60
  6. Step 6: Final answer
    x = 98,329.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.