Home / 199,587.03-275,491.14-123,129.90

Finding the Fourth Proportional to 199,587.03, 275,491.14 and 123,129.90

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Solution

The fourth proportional to 199,587.03, 275,491.14 and 123,129.90 is: 169,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,587.03 : 275,491.14 = 123,129.90 : x
  2. Step 2: Convert to fraction form
    199,587.03/275,491.14 = 123,129.90/x
  3. Step 3: Cross multiply
    199,587.03x = 275,491.14 × 123,129.90
  4. Step 4: Simplify right side
    199,587.03x = 33,921,196,519.09
  5. Step 5: Solve for x
    x = 33,921,196,519.09/199,587.03
  6. Step 6: Final answer
    x = 169,956.92

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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.