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Finding the Fourth Proportional to 139,027.68, 208,570.68 and 60,153.12

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Solution

The fourth proportional to 139,027.68, 208,570.68 and 60,153.12 is: 90,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,027.68 : 208,570.68 = 60,153.12 : x
  2. Step 2: Convert to fraction form
    139,027.68/208,570.68 = 60,153.12/x
  3. Step 3: Cross multiply
    139,027.68x = 208,570.68 × 60,153.12
  4. Step 4: Simplify right side
    139,027.68x = 12,546,177,142.52
  5. Step 5: Solve for x
    x = 12,546,177,142.52/139,027.68
  6. Step 6: Final answer
    x = 90,242.30

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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.