Home / 143,862.68-198,526.14-79,331.87

Finding the Fourth Proportional to 143,862.68, 198,526.14 and 79,331.87

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Solution

The fourth proportional to 143,862.68, 198,526.14 and 79,331.87 is: 109,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,862.68 : 198,526.14 = 79,331.87 : x
  2. Step 2: Convert to fraction form
    143,862.68/198,526.14 = 79,331.87/x
  3. Step 3: Cross multiply
    143,862.68x = 198,526.14 × 79,331.87
  4. Step 4: Simplify right side
    143,862.68x = 15,749,450,426.40
  5. Step 5: Solve for x
    x = 15,749,450,426.40/143,862.68
  6. Step 6: Final answer
    x = 109,475.58

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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.