Home / 127,857.38-176,443.98-71,272.40

Finding the Fourth Proportional to 127,857.38, 176,443.98 and 71,272.40

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Solution

The fourth proportional to 127,857.38, 176,443.98 and 71,272.40 is: 98,356.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,857.38 : 176,443.98 = 71,272.40 : x
  2. Step 2: Convert to fraction form
    127,857.38/176,443.98 = 71,272.40/x
  3. Step 3: Cross multiply
    127,857.38x = 176,443.98 × 71,272.40
  4. Step 4: Simplify right side
    127,857.38x = 12,575,585,920.15
  5. Step 5: Solve for x
    x = 12,575,585,920.15/127,857.38
  6. Step 6: Final answer
    x = 98,356.36

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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.