Home / 135,385.92-203,311.20-83,102.40

Finding the Fourth Proportional to 135,385.92, 203,311.20 and 83,102.40

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Solution

The fourth proportional to 135,385.92, 203,311.20 and 83,102.40 is: 124,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,385.92 : 203,311.20 = 83,102.40 : x
  2. Step 2: Convert to fraction form
    135,385.92/203,311.20 = 83,102.40/x
  3. Step 3: Cross multiply
    135,385.92x = 203,311.20 × 83,102.40
  4. Step 4: Simplify right side
    135,385.92x = 16,895,648,666.88
  5. Step 5: Solve for x
    x = 16,895,648,666.88/135,385.92
  6. Step 6: Final answer
    x = 124,796.20

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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.