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Finding the Fourth Proportional to 127,710, 176,068.02 and 89,418.04

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Solution

The fourth proportional to 127,710, 176,068.02 and 89,418.04 is: 123,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,710 : 176,068.02 = 89,418.04 : x
  2. Step 2: Convert to fraction form
    127,710/176,068.02 = 89,418.04/x
  3. Step 3: Cross multiply
    127,710x = 176,068.02 × 89,418.04
  4. Step 4: Simplify right side
    127,710x = 15,743,657,255.08
  5. Step 5: Solve for x
    x = 15,743,657,255.08/127,710
  6. Step 6: Final answer
    x = 123,276.62

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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.