Home / 312,472.10-468,732.45-102,131.30

Finding the Fourth Proportional to 312,472.10, 468,732.45 and 102,131.30

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Solution

The fourth proportional to 312,472.10, 468,732.45 and 102,131.30 is: 153,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,472.10 : 468,732.45 = 102,131.30 : x
  2. Step 2: Convert to fraction form
    312,472.10/468,732.45 = 102,131.30/x
  3. Step 3: Cross multiply
    312,472.10x = 468,732.45 × 102,131.30
  4. Step 4: Simplify right side
    312,472.10x = 47,872,252,127.02
  5. Step 5: Solve for x
    x = 47,872,252,127.02/312,472.10
  6. Step 6: Final answer
    x = 153,204.89

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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.