Home / 156,269.01-215,646.79-91,737.21

Finding the Fourth Proportional to 156,269.01, 215,646.79 and 91,737.21

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Solution

The fourth proportional to 156,269.01, 215,646.79 and 91,737.21 is: 126,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,269.01 : 215,646.79 = 91,737.21 : x
  2. Step 2: Convert to fraction form
    156,269.01/215,646.79 = 91,737.21/x
  3. Step 3: Cross multiply
    156,269.01x = 215,646.79 × 91,737.21
  4. Step 4: Simplify right side
    156,269.01x = 19,782,834,860.06
  5. Step 5: Solve for x
    x = 19,782,834,860.06/156,269.01
  6. Step 6: Final answer
    x = 126,594.74

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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.