Home / 102,148.75-140,965.28-57,436.75

Finding the Fourth Proportional to 102,148.75, 140,965.28 and 57,436.75

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Solution

The fourth proportional to 102,148.75, 140,965.28 and 57,436.75 is: 79,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,148.75 : 140,965.28 = 57,436.75 : x
  2. Step 2: Convert to fraction form
    102,148.75/140,965.28 = 57,436.75/x
  3. Step 3: Cross multiply
    102,148.75x = 140,965.28 × 57,436.75
  4. Step 4: Simplify right side
    102,148.75x = 8,096,587,546.04
  5. Step 5: Solve for x
    x = 8,096,587,546.04/102,148.75
  6. Step 6: Final answer
    x = 79,262.72

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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.