Home / 199,384.13-275,139.16-113,331.15

Finding the Fourth Proportional to 199,384.13, 275,139.16 and 113,331.15

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Solution

The fourth proportional to 199,384.13, 275,139.16 and 113,331.15 is: 156,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,384.13 : 275,139.16 = 113,331.15 : x
  2. Step 2: Convert to fraction form
    199,384.13/275,139.16 = 113,331.15/x
  3. Step 3: Cross multiply
    199,384.13x = 275,139.16 × 113,331.15
  4. Step 4: Simplify right side
    199,384.13x = 31,181,837,766.99
  5. Step 5: Solve for x
    x = 31,181,837,766.99/199,384.13
  6. Step 6: Final answer
    x = 156,390.77

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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.