Home / 127,748.64-176,298.48-71,160

Finding the Fourth Proportional to 127,748.64, 176,298.48 and 71,160

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Solution

The fourth proportional to 127,748.64, 176,298.48 and 71,160 is: 98,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,748.64 : 176,298.48 = 71,160 : x
  2. Step 2: Convert to fraction form
    127,748.64/176,298.48 = 71,160/x
  3. Step 3: Cross multiply
    127,748.64x = 176,298.48 × 71,160
  4. Step 4: Simplify right side
    127,748.64x = 12,545,399,836.80
  5. Step 5: Solve for x
    x = 12,545,399,836.80/127,748.64
  6. Step 6: Final answer
    x = 98,203.78

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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.