Home / 127,632.30-176,121.80-75,235.92

Finding the Fourth Proportional to 127,632.30, 176,121.80 and 75,235.92

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Solution

The fourth proportional to 127,632.30, 176,121.80 and 75,235.92 is: 103,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,632.30 : 176,121.80 = 75,235.92 : x
  2. Step 2: Convert to fraction form
    127,632.30/176,121.80 = 75,235.92/x
  3. Step 3: Cross multiply
    127,632.30x = 176,121.80 × 75,235.92
  4. Step 4: Simplify right side
    127,632.30x = 13,250,685,655.06
  5. Step 5: Solve for x
    x = 13,250,685,655.06/127,632.30
  6. Step 6: Final answer
    x = 103,819.22

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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.