Home / 156,357.09-215,772.75-84,737.11

Finding the Fourth Proportional to 156,357.09, 215,772.75 and 84,737.11

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Solution

The fourth proportional to 156,357.09, 215,772.75 and 84,737.11 is: 116,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,357.09 : 215,772.75 = 84,737.11 : x
  2. Step 2: Convert to fraction form
    156,357.09/215,772.75 = 84,737.11/x
  3. Step 3: Cross multiply
    156,357.09x = 215,772.75 × 84,737.11
  4. Step 4: Simplify right side
    156,357.09x = 18,283,959,251.75
  5. Step 5: Solve for x
    x = 18,283,959,251.75/156,357.09
  6. Step 6: Final answer
    x = 116,937.19

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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.