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Finding the Fourth Proportional to 101,601.57, 140,211.29 and 56,280.25

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Solution

The fourth proportional to 101,601.57, 140,211.29 and 56,280.25 is: 77,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,601.57 : 140,211.29 = 56,280.25 : x
  2. Step 2: Convert to fraction form
    101,601.57/140,211.29 = 56,280.25/x
  3. Step 3: Cross multiply
    101,601.57x = 140,211.29 × 56,280.25
  4. Step 4: Simplify right side
    101,601.57x = 7,891,125,471.56
  5. Step 5: Solve for x
    x = 7,891,125,471.56/101,601.57
  6. Step 6: Final answer
    x = 77,667.36

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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.