Home / 156,490.53-215,937.13-92,815.89

Finding the Fourth Proportional to 156,490.53, 215,937.13 and 92,815.89

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Solution

The fourth proportional to 156,490.53, 215,937.13 and 92,815.89 is: 128,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,490.53 : 215,937.13 = 92,815.89 : x
  2. Step 2: Convert to fraction form
    156,490.53/215,937.13 = 92,815.89/x
  3. Step 3: Cross multiply
    156,490.53x = 215,937.13 × 92,815.89
  4. Step 4: Simplify right side
    156,490.53x = 20,042,397,444.84
  5. Step 5: Solve for x
    x = 20,042,397,444.84/156,490.53
  6. Step 6: Final answer
    x = 128,074.19

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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.