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Finding the Fourth Proportional to 139,224.76, 192,130.68 and 75,562.56

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Solution

The fourth proportional to 139,224.76, 192,130.68 and 75,562.56 is: 104,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,224.76 : 192,130.68 = 75,562.56 : x
  2. Step 2: Convert to fraction form
    139,224.76/192,130.68 = 75,562.56/x
  3. Step 3: Cross multiply
    139,224.76x = 192,130.68 × 75,562.56
  4. Step 4: Simplify right side
    139,224.76x = 14,517,886,048.52
  5. Step 5: Solve for x
    x = 14,517,886,048.52/139,224.76
  6. Step 6: Final answer
    x = 104,276.61

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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.