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Finding the Fourth Proportional to 103,179, 142,387.02 and 60,763.62

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Solution

The fourth proportional to 103,179, 142,387.02 and 60,763.62 is: 83,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,179 : 142,387.02 = 60,763.62 : x
  2. Step 2: Convert to fraction form
    103,179/142,387.02 = 60,763.62/x
  3. Step 3: Cross multiply
    103,179x = 142,387.02 × 60,763.62
  4. Step 4: Simplify right side
    103,179x = 8,651,950,776.21
  5. Step 5: Solve for x
    x = 8,651,950,776.21/103,179
  6. Step 6: Final answer
    x = 83,853.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.