Home / 143,697.16-198,294.24-79,153.76

Finding the Fourth Proportional to 143,697.16, 198,294.24 and 79,153.76

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Solution

The fourth proportional to 143,697.16, 198,294.24 and 79,153.76 is: 109,227.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,697.16 : 198,294.24 = 79,153.76 : x
  2. Step 2: Convert to fraction form
    143,697.16/198,294.24 = 79,153.76/x
  3. Step 3: Cross multiply
    143,697.16x = 198,294.24 × 79,153.76
  4. Step 4: Simplify right side
    143,697.16x = 15,695,734,682.34
  5. Step 5: Solve for x
    x = 15,695,734,682.34/143,697.16
  6. Step 6: Final answer
    x = 109,227.87

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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.