Home / 131,785.07-181,863.75-71,356.46

Finding the Fourth Proportional to 131,785.07, 181,863.75 and 71,356.46

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Solution

The fourth proportional to 131,785.07, 181,863.75 and 71,356.46 is: 98,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,785.07 : 181,863.75 = 71,356.46 : x
  2. Step 2: Convert to fraction form
    131,785.07/181,863.75 = 71,356.46/x
  3. Step 3: Cross multiply
    131,785.07x = 181,863.75 × 71,356.46
  4. Step 4: Simplify right side
    131,785.07x = 12,977,153,402.33
  5. Step 5: Solve for x
    x = 12,977,153,402.33/131,785.07
  6. Step 6: Final answer
    x = 98,472.11

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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.