Home / 135,616.10-203,424.15-42,131.30

Finding the Fourth Proportional to 135,616.10, 203,424.15 and 42,131.30

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Solution

The fourth proportional to 135,616.10, 203,424.15 and 42,131.30 is: 63,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,616.10 : 203,424.15 = 42,131.30 : x
  2. Step 2: Convert to fraction form
    135,616.10/203,424.15 = 42,131.30/x
  3. Step 3: Cross multiply
    135,616.10x = 203,424.15 × 42,131.30
  4. Step 4: Simplify right side
    135,616.10x = 8,570,523,890.90
  5. Step 5: Solve for x
    x = 8,570,523,890.90/135,616.10
  6. Step 6: Final answer
    x = 63,196.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.