Home / 102,474.06-141,415-57,154.92

Finding the Fourth Proportional to 102,474.06, 141,415 and 57,154.92

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Solution

The fourth proportional to 102,474.06, 141,415 and 57,154.92 is: 78,874.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,474.06 : 141,415 = 57,154.92 : x
  2. Step 2: Convert to fraction form
    102,474.06/141,415 = 57,154.92/x
  3. Step 3: Cross multiply
    102,474.06x = 141,415 × 57,154.92
  4. Step 4: Simplify right side
    102,474.06x = 8,082,563,011.80
  5. Step 5: Solve for x
    x = 8,082,563,011.80/102,474.06
  6. Step 6: Final answer
    x = 78,874.23

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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.