Home / 131,854.91-181,960.16-71,425.40

Finding the Fourth Proportional to 131,854.91, 181,960.16 and 71,425.40

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Solution

The fourth proportional to 131,854.91, 181,960.16 and 71,425.40 is: 98,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,854.91 : 181,960.16 = 71,425.40 : x
  2. Step 2: Convert to fraction form
    131,854.91/181,960.16 = 71,425.40/x
  3. Step 3: Cross multiply
    131,854.91x = 181,960.16 × 71,425.40
  4. Step 4: Simplify right side
    131,854.91x = 12,996,575,945.14
  5. Step 5: Solve for x
    x = 12,996,575,945.14/131,854.91
  6. Step 6: Final answer
    x = 98,567.25

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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.