Home / 127,122.56-176,232.86-120,381.74

Finding the Fourth Proportional to 127,122.56, 176,232.86 and 120,381.74

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Solution

The fourth proportional to 127,122.56, 176,232.86 and 120,381.74 is: 166,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,122.56 : 176,232.86 = 120,381.74 : x
  2. Step 2: Convert to fraction form
    127,122.56/176,232.86 = 120,381.74/x
  3. Step 3: Cross multiply
    127,122.56x = 176,232.86 × 120,381.74
  4. Step 4: Simplify right side
    127,122.56x = 21,215,218,331.98
  5. Step 5: Solve for x
    x = 21,215,218,331.98/127,122.56
  6. Step 6: Final answer
    x = 166,887.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.