Home / 102,417.92-153,363.36-82,332.80

Finding the Fourth Proportional to 102,417.92, 153,363.36 and 82,332.80

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Solution

The fourth proportional to 102,417.92, 153,363.36 and 82,332.80 is: 123,287.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,417.92 : 153,363.36 = 82,332.80 : x
  2. Step 2: Convert to fraction form
    102,417.92/153,363.36 = 82,332.80/x
  3. Step 3: Cross multiply
    102,417.92x = 153,363.36 × 82,332.80
  4. Step 4: Simplify right side
    102,417.92x = 12,626,834,846.21
  5. Step 5: Solve for x
    x = 12,626,834,846.21/102,417.92
  6. Step 6: Final answer
    x = 123,287.36

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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.