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Finding the Fourth Proportional to 75,159.40, 112,593.18 and 67,174.12

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Solution

The fourth proportional to 75,159.40, 112,593.18 and 67,174.12 is: 100,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,159.40 : 112,593.18 = 67,174.12 : x
  2. Step 2: Convert to fraction form
    75,159.40/112,593.18 = 67,174.12/x
  3. Step 3: Cross multiply
    75,159.40x = 112,593.18 × 67,174.12
  4. Step 4: Simplify right side
    75,159.40x = 7,563,347,784.50
  5. Step 5: Solve for x
    x = 7,563,347,784.50/75,159.40
  6. Step 6: Final answer
    x = 100,630.76

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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.