Home / 127,140.65-175,456.33-69,785.34

Finding the Fourth Proportional to 127,140.65, 175,456.33 and 69,785.34

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Solution

The fourth proportional to 127,140.65, 175,456.33 and 69,785.34 is: 96,304.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.65 : 175,456.33 = 69,785.34 : x
  2. Step 2: Convert to fraction form
    127,140.65/175,456.33 = 69,785.34/x
  3. Step 3: Cross multiply
    127,140.65x = 175,456.33 × 69,785.34
  4. Step 4: Simplify right side
    127,140.65x = 12,244,279,469.74
  5. Step 5: Solve for x
    x = 12,244,279,469.74/127,140.65
  6. Step 6: Final answer
    x = 96,304.99

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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.