Home / 99,621.60-149,301.20-73,202.40

Finding the Fourth Proportional to 99,621.60, 149,301.20 and 73,202.40

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Solution

The fourth proportional to 99,621.60, 149,301.20 and 73,202.40 is: 109,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,621.60 : 149,301.20 = 73,202.40 : x
  2. Step 2: Convert to fraction form
    99,621.60/149,301.20 = 73,202.40/x
  3. Step 3: Cross multiply
    99,621.60x = 149,301.20 × 73,202.40
  4. Step 4: Simplify right side
    99,621.60x = 10,929,206,162.88
  5. Step 5: Solve for x
    x = 10,929,206,162.88/99,621.60
  6. Step 6: Final answer
    x = 109,707.19

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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.