Home / 127,126.56-176,238.42-120,385.74

Finding the Fourth Proportional to 127,126.56, 176,238.42 and 120,385.74

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Solution

The fourth proportional to 127,126.56, 176,238.42 and 120,385.74 is: 166,893.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,126.56 : 176,238.42 = 120,385.74 : x
  2. Step 2: Convert to fraction form
    127,126.56/176,238.42 = 120,385.74/x
  3. Step 3: Cross multiply
    127,126.56x = 176,238.42 × 120,385.74
  4. Step 4: Simplify right side
    127,126.56x = 21,216,592,608.13
  5. Step 5: Solve for x
    x = 21,216,592,608.13/127,126.56
  6. Step 6: Final answer
    x = 166,893.47

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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.