Home / 99,747.70-149,621.55-97,998.10

Finding the Fourth Proportional to 99,747.70, 149,621.55 and 97,998.10

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Solution

The fourth proportional to 99,747.70, 149,621.55 and 97,998.10 is: 146,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747.70 : 149,621.55 = 97,998.10 : x
  2. Step 2: Convert to fraction form
    99,747.70/149,621.55 = 97,998.10/x
  3. Step 3: Cross multiply
    99,747.70x = 149,621.55 × 97,998.10
  4. Step 4: Simplify right side
    99,747.70x = 14,662,627,619.06
  5. Step 5: Solve for x
    x = 14,662,627,619.06/99,747.70
  6. Step 6: Final answer
    x = 146,997.15

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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.