Home / 102,700.04-141,724.86-57,378.92

Finding the Fourth Proportional to 102,700.04, 141,724.86 and 57,378.92

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Solution

The fourth proportional to 102,700.04, 141,724.86 and 57,378.92 is: 79,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,700.04 : 141,724.86 = 57,378.92 : x
  2. Step 2: Convert to fraction form
    102,700.04/141,724.86 = 57,378.92/x
  3. Step 3: Cross multiply
    102,700.04x = 141,724.86 × 57,378.92
  4. Step 4: Simplify right side
    102,700.04x = 8,132,019,403.95
  5. Step 5: Solve for x
    x = 8,132,019,403.95/102,700.04
  6. Step 6: Final answer
    x = 79,182.24

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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.