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Finding the Fourth Proportional to 127,362.60, 175,705.88 and 79,532.91

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Solution

The fourth proportional to 127,362.60, 175,705.88 and 79,532.91 is: 109,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,362.60 : 175,705.88 = 79,532.91 : x
  2. Step 2: Convert to fraction form
    127,362.60/175,705.88 = 79,532.91/x
  3. Step 3: Cross multiply
    127,362.60x = 175,705.88 × 79,532.91
  4. Step 4: Simplify right side
    127,362.60x = 13,974,399,542.85
  5. Step 5: Solve for x
    x = 13,974,399,542.85/127,362.60
  6. Step 6: Final answer
    x = 109,721.37

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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.