Home / 102,360.28-141,255.75-57,040.18

Finding the Fourth Proportional to 102,360.28, 141,255.75 and 57,040.18

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Solution

The fourth proportional to 102,360.28, 141,255.75 and 57,040.18 is: 78,714.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,360.28 : 141,255.75 = 57,040.18 : x
  2. Step 2: Convert to fraction form
    102,360.28/141,255.75 = 57,040.18/x
  3. Step 3: Cross multiply
    102,360.28x = 141,255.75 × 57,040.18
  4. Step 4: Simplify right side
    102,360.28x = 8,057,253,406.04
  5. Step 5: Solve for x
    x = 8,057,253,406.04/102,360.28
  6. Step 6: Final answer
    x = 78,714.65

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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.