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Finding the Fourth Proportional to 71,501.70, 107,252.55 and 68,468.10

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Solution

The fourth proportional to 71,501.70, 107,252.55 and 68,468.10 is: 102,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,501.70 : 107,252.55 = 68,468.10 : x
  2. Step 2: Convert to fraction form
    71,501.70/107,252.55 = 68,468.10/x
  3. Step 3: Cross multiply
    71,501.70x = 107,252.55 × 68,468.10
  4. Step 4: Simplify right side
    71,501.70x = 7,343,378,318.66
  5. Step 5: Solve for x
    x = 7,343,378,318.66/71,501.70
  6. Step 6: Final answer
    x = 102,702.15

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1.5x scale

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.