Home / 198,312.25-273,669.38-107,666.42

Finding the Fourth Proportional to 198,312.25, 273,669.38 and 107,666.42

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Solution

The fourth proportional to 198,312.25, 273,669.38 and 107,666.42 is: 148,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,312.25 : 273,669.38 = 107,666.42 : x
  2. Step 2: Convert to fraction form
    198,312.25/273,669.38 = 107,666.42/x
  3. Step 3: Cross multiply
    198,312.25x = 273,669.38 × 107,666.42
  4. Step 4: Simplify right side
    198,312.25x = 29,465,001,510.91
  5. Step 5: Solve for x
    x = 29,465,001,510.91/198,312.25
  6. Step 6: Final answer
    x = 148,578.83

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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.