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Finding the Fourth Proportional to 127,146.96, 175,460.96 and 72,698.60

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Solution

The fourth proportional to 127,146.96, 175,460.96 and 72,698.60 is: 100,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,146.96 : 175,460.96 = 72,698.60 : x
  2. Step 2: Convert to fraction form
    127,146.96/175,460.96 = 72,698.60/x
  3. Step 3: Cross multiply
    127,146.96x = 175,460.96 × 72,698.60
  4. Step 4: Simplify right side
    127,146.96x = 12,755,766,146.66
  5. Step 5: Solve for x
    x = 12,755,766,146.66/127,146.96
  6. Step 6: Final answer
    x = 100,323.01

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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.