Home / 198,575.12-274,036.41-107,931.03

Finding the Fourth Proportional to 198,575.12, 274,036.41 and 107,931.03

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Solution

The fourth proportional to 198,575.12, 274,036.41 and 107,931.03 is: 148,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,575.12 : 274,036.41 = 107,931.03 : x
  2. Step 2: Convert to fraction form
    198,575.12/274,036.41 = 107,931.03/x
  3. Step 3: Cross multiply
    198,575.12x = 274,036.41 × 107,931.03
  4. Step 4: Simplify right side
    198,575.12x = 29,577,031,988.80
  5. Step 5: Solve for x
    x = 29,577,031,988.80/198,575.12
  6. Step 6: Final answer
    x = 148,946.32

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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.