Home / 127,718.70-176,252.16-71,129.94

Finding the Fourth Proportional to 127,718.70, 176,252.16 and 71,129.94

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Solution

The fourth proportional to 127,718.70, 176,252.16 and 71,129.94 is: 98,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,718.70 : 176,252.16 = 71,129.94 : x
  2. Step 2: Convert to fraction form
    127,718.70/176,252.16 = 71,129.94/x
  3. Step 3: Cross multiply
    127,718.70x = 176,252.16 × 71,129.94
  4. Step 4: Simplify right side
    127,718.70x = 12,536,805,565.67
  5. Step 5: Solve for x
    x = 12,536,805,565.67/127,718.70
  6. Step 6: Final answer
    x = 98,159.51

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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.