Home / 97,772.13-146,658.20-45,174.78

Finding the Fourth Proportional to 97,772.13, 146,658.20 and 45,174.78

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Solution

The fourth proportional to 97,772.13, 146,658.20 and 45,174.78 is: 67,762.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,772.13 : 146,658.20 = 45,174.78 : x
  2. Step 2: Convert to fraction form
    97,772.13/146,658.20 = 45,174.78/x
  3. Step 3: Cross multiply
    97,772.13x = 146,658.20 × 45,174.78
  4. Step 4: Simplify right side
    97,772.13x = 6,625,251,694.32
  5. Step 5: Solve for x
    x = 6,625,251,694.32/97,772.13
  6. Step 6: Final answer
    x = 67,762.17

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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.