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Finding the Fourth Proportional to 101,952.32, 140,679.84 and 56,626.88

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Solution

The fourth proportional to 101,952.32, 140,679.84 and 56,626.88 is: 78,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,952.32 : 140,679.84 = 56,626.88 : x
  2. Step 2: Convert to fraction form
    101,952.32/140,679.84 = 56,626.88/x
  3. Step 3: Cross multiply
    101,952.32x = 140,679.84 × 56,626.88
  4. Step 4: Simplify right side
    101,952.32x = 7,966,260,418.10
  5. Step 5: Solve for x
    x = 7,966,260,418.10/101,952.32
  6. Step 6: Final answer
    x = 78,137.12

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1.5x scale

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.