Home / 127,926.10-191,889.15-72,630.10

Finding the Fourth Proportional to 127,926.10, 191,889.15 and 72,630.10

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Solution

The fourth proportional to 127,926.10, 191,889.15 and 72,630.10 is: 108,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,926.10 : 191,889.15 = 72,630.10 : x
  2. Step 2: Convert to fraction form
    127,926.10/191,889.15 = 72,630.10/x
  3. Step 3: Cross multiply
    127,926.10x = 191,889.15 × 72,630.10
  4. Step 4: Simplify right side
    127,926.10x = 13,936,928,153.42
  5. Step 5: Solve for x
    x = 13,936,928,153.42/127,926.10
  6. Step 6: Final answer
    x = 108,945.15

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Similar ratio
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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.