Home / 115,337.04-173,136.78-77,414.46

Finding the Fourth Proportional to 115,337.04, 173,136.78 and 77,414.46

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Solution

The fourth proportional to 115,337.04, 173,136.78 and 77,414.46 is: 116,209.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,337.04 : 173,136.78 = 77,414.46 : x
  2. Step 2: Convert to fraction form
    115,337.04/173,136.78 = 77,414.46/x
  3. Step 3: Cross multiply
    115,337.04x = 173,136.78 × 77,414.46
  4. Step 4: Simplify right side
    115,337.04x = 13,403,290,329.84
  5. Step 5: Solve for x
    x = 13,403,290,329.84/115,337.04
  6. Step 6: Final answer
    x = 116,209.77

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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.