Home / 131,658.59-181,688.38-71,229.26

Finding the Fourth Proportional to 131,658.59, 181,688.38 and 71,229.26

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Solution

The fourth proportional to 131,658.59, 181,688.38 and 71,229.26 is: 98,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,658.59 : 181,688.38 = 71,229.26 : x
  2. Step 2: Convert to fraction form
    131,658.59/181,688.38 = 71,229.26/x
  3. Step 3: Cross multiply
    131,658.59x = 181,688.38 × 71,229.26
  4. Step 4: Simplify right side
    131,658.59x = 12,941,528,858.00
  5. Step 5: Solve for x
    x = 12,941,528,858.00/131,658.59
  6. Step 6: Final answer
    x = 98,296.12

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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.