Home / 215,631.68-323,510.08-89,248.64

Finding the Fourth Proportional to 215,631.68, 323,510.08 and 89,248.64

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Solution

The fourth proportional to 215,631.68, 323,510.08 and 89,248.64 is: 133,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,631.68 : 323,510.08 = 89,248.64 : x
  2. Step 2: Convert to fraction form
    215,631.68/323,510.08 = 89,248.64/x
  3. Step 3: Cross multiply
    215,631.68x = 323,510.08 × 89,248.64
  4. Step 4: Simplify right side
    215,631.68x = 28,872,834,666.29
  5. Step 5: Solve for x
    x = 28,872,834,666.29/215,631.68
  6. Step 6: Final answer
    x = 133,898.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.