Home / 143,666.33-198,264.04-79,140.24

Finding the Fourth Proportional to 143,666.33, 198,264.04 and 79,140.24

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Solution

The fourth proportional to 143,666.33, 198,264.04 and 79,140.24 is: 109,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,666.33 : 198,264.04 = 79,140.24 : x
  2. Step 2: Convert to fraction form
    143,666.33/198,264.04 = 79,140.24/x
  3. Step 3: Cross multiply
    143,666.33x = 198,264.04 × 79,140.24
  4. Step 4: Simplify right side
    143,666.33x = 15,690,663,511.12
  5. Step 5: Solve for x
    x = 15,690,663,511.12/143,666.33
  6. Step 6: Final answer
    x = 109,216.02

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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.