Home / 102,386.52-141,301.56-57,079.08

Finding the Fourth Proportional to 102,386.52, 141,301.56 and 57,079.08

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Solution

The fourth proportional to 102,386.52, 141,301.56 and 57,079.08 is: 78,773.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,386.52 : 141,301.56 = 57,079.08 : x
  2. Step 2: Convert to fraction form
    102,386.52/141,301.56 = 57,079.08/x
  3. Step 3: Cross multiply
    102,386.52x = 141,301.56 × 57,079.08
  4. Step 4: Simplify right side
    102,386.52x = 8,065,363,047.36
  5. Step 5: Solve for x
    x = 8,065,363,047.36/102,386.52
  6. Step 6: Final answer
    x = 78,773.68

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1.5x scale

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.