Home / 131,654.68-181,683.21-71,225.40

Finding the Fourth Proportional to 131,654.68, 181,683.21 and 71,225.40

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Solution

The fourth proportional to 131,654.68, 181,683.21 and 71,225.40 is: 98,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.68 : 181,683.21 = 71,225.40 : x
  2. Step 2: Convert to fraction form
    131,654.68/181,683.21 = 71,225.40/x
  3. Step 3: Cross multiply
    131,654.68x = 181,683.21 × 71,225.40
  4. Step 4: Simplify right side
    131,654.68x = 12,940,459,305.53
  5. Step 5: Solve for x
    x = 12,940,459,305.53/131,654.68
  6. Step 6: Final answer
    x = 98,290.92

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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.