Home / 99,564.60-149,346.90-73,126.20

Finding the Fourth Proportional to 99,564.60, 149,346.90 and 73,126.20

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Solution

The fourth proportional to 99,564.60, 149,346.90 and 73,126.20 is: 109,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,564.60 : 149,346.90 = 73,126.20 : x
  2. Step 2: Convert to fraction form
    99,564.60/149,346.90 = 73,126.20/x
  3. Step 3: Cross multiply
    99,564.60x = 149,346.90 × 73,126.20
  4. Step 4: Simplify right side
    99,564.60x = 10,921,171,278.78
  5. Step 5: Solve for x
    x = 10,921,171,278.78/99,564.60
  6. Step 6: Final answer
    x = 109,689.30

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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.