Home / 127,664.16-176,165.65-71,080.80

Finding the Fourth Proportional to 127,664.16, 176,165.65 and 71,080.80

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Solution

The fourth proportional to 127,664.16, 176,165.65 and 71,080.80 is: 98,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,664.16 : 176,165.65 = 71,080.80 : x
  2. Step 2: Convert to fraction form
    127,664.16/176,165.65 = 71,080.80/x
  3. Step 3: Cross multiply
    127,664.16x = 176,165.65 × 71,080.80
  4. Step 4: Simplify right side
    127,664.16x = 12,521,994,098.29
  5. Step 5: Solve for x
    x = 12,521,994,098.29/127,664.16
  6. Step 6: Final answer
    x = 98,085.43

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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.