Home / 127,843.12-176,423.70-71,253.28

Finding the Fourth Proportional to 127,843.12, 176,423.70 and 71,253.28

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Solution

The fourth proportional to 127,843.12, 176,423.70 and 71,253.28 is: 98,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,843.12 : 176,423.70 = 71,253.28 : x
  2. Step 2: Convert to fraction form
    127,843.12/176,423.70 = 71,253.28/x
  3. Step 3: Cross multiply
    127,843.12x = 176,423.70 × 71,253.28
  4. Step 4: Simplify right side
    127,843.12x = 12,570,767,294.74
  5. Step 5: Solve for x
    x = 12,570,767,294.74/127,843.12
  6. Step 6: Final answer
    x = 98,329.63

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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.