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Finding the Fourth Proportional to 127,999.70, 191,740.35 and 88,601.30

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Solution

The fourth proportional to 127,999.70, 191,740.35 and 88,601.30 is: 132,722.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.70 : 191,740.35 = 88,601.30 : x
  2. Step 2: Convert to fraction form
    127,999.70/191,740.35 = 88,601.30/x
  3. Step 3: Cross multiply
    127,999.70x = 191,740.35 × 88,601.30
  4. Step 4: Simplify right side
    127,999.70x = 16,988,444,272.46
  5. Step 5: Solve for x
    x = 16,988,444,272.46/127,999.70
  6. Step 6: Final answer
    x = 132,722.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.