Home / 127,704.88-176,232.54-71,129.62

Finding the Fourth Proportional to 127,704.88, 176,232.54 and 71,129.62

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Solution

The fourth proportional to 127,704.88, 176,232.54 and 71,129.62 is: 98,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,704.88 : 176,232.54 = 71,129.62 : x
  2. Step 2: Convert to fraction form
    127,704.88/176,232.54 = 71,129.62/x
  3. Step 3: Cross multiply
    127,704.88x = 176,232.54 × 71,129.62
  4. Step 4: Simplify right side
    127,704.88x = 12,535,353,601.83
  5. Step 5: Solve for x
    x = 12,535,353,601.83/127,704.88
  6. Step 6: Final answer
    x = 98,158.77

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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.