Home / 102,286.09-141,154.85-56,972.77

Finding the Fourth Proportional to 102,286.09, 141,154.85 and 56,972.77

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Solution

The fourth proportional to 102,286.09, 141,154.85 and 56,972.77 is: 78,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,286.09 : 141,154.85 = 56,972.77 : x
  2. Step 2: Convert to fraction form
    102,286.09/141,154.85 = 56,972.77/x
  3. Step 3: Cross multiply
    102,286.09x = 141,154.85 × 56,972.77
  4. Step 4: Simplify right side
    102,286.09x = 8,041,982,592.98
  5. Step 5: Solve for x
    x = 8,041,982,592.98/102,286.09
  6. Step 6: Final answer
    x = 78,622.45

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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.