Home / 99,177.28-136,707.36-97,211.20

Finding the Fourth Proportional to 99,177.28, 136,707.36 and 97,211.20

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Solution

The fourth proportional to 99,177.28, 136,707.36 and 97,211.20 is: 133,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,177.28 : 136,707.36 = 97,211.20 : x
  2. Step 2: Convert to fraction form
    99,177.28/136,707.36 = 97,211.20/x
  3. Step 3: Cross multiply
    99,177.28x = 136,707.36 × 97,211.20
  4. Step 4: Simplify right side
    99,177.28x = 13,289,486,514.43
  5. Step 5: Solve for x
    x = 13,289,486,514.43/99,177.28
  6. Step 6: Final answer
    x = 133,997.29

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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.