Home / 127,728.04-176,251.24-74,029.92

Finding the Fourth Proportional to 127,728.04, 176,251.24 and 74,029.92

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Solution

The fourth proportional to 127,728.04, 176,251.24 and 74,029.92 is: 102,153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,728.04 : 176,251.24 = 74,029.92 : x
  2. Step 2: Convert to fraction form
    127,728.04/176,251.24 = 74,029.92/x
  3. Step 3: Cross multiply
    127,728.04x = 176,251.24 × 74,029.92
  4. Step 4: Simplify right side
    127,728.04x = 13,047,865,197.10
  5. Step 5: Solve for x
    x = 13,047,865,197.10/127,728.04
  6. Step 6: Final answer
    x = 102,153.49

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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.