Home / 99,666.13-149,499.20-40,506.42

Finding the Fourth Proportional to 99,666.13, 149,499.20 and 40,506.42

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Solution

The fourth proportional to 99,666.13, 149,499.20 and 40,506.42 is: 60,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.13 : 149,499.20 = 40,506.42 : x
  2. Step 2: Convert to fraction form
    99,666.13/149,499.20 = 40,506.42/x
  3. Step 3: Cross multiply
    99,666.13x = 149,499.20 × 40,506.42
  4. Step 4: Simplify right side
    99,666.13x = 6,055,677,384.86
  5. Step 5: Solve for x
    x = 6,055,677,384.86/99,666.13
  6. Step 6: Final answer
    x = 60,759.63

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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.