Home / 102,285.20-141,153.19-56,963.72

Finding the Fourth Proportional to 102,285.20, 141,153.19 and 56,963.72

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Solution

The fourth proportional to 102,285.20, 141,153.19 and 56,963.72 is: 78,609.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,285.20 : 141,153.19 = 56,963.72 : x
  2. Step 2: Convert to fraction form
    102,285.20/141,153.19 = 56,963.72/x
  3. Step 3: Cross multiply
    102,285.20x = 141,153.19 × 56,963.72
  4. Step 4: Simplify right side
    102,285.20x = 8,040,611,002.74
  5. Step 5: Solve for x
    x = 8,040,611,002.74/102,285.20
  6. Step 6: Final answer
    x = 78,609.72

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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.