Home / 136,086.57-203,693.11-72,748.35

Finding the Fourth Proportional to 136,086.57, 203,693.11 and 72,748.35

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Solution

The fourth proportional to 136,086.57, 203,693.11 and 72,748.35 is: 108,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,086.57 : 203,693.11 = 72,748.35 : x
  2. Step 2: Convert to fraction form
    136,086.57/203,693.11 = 72,748.35/x
  3. Step 3: Cross multiply
    136,086.57x = 203,693.11 × 72,748.35
  4. Step 4: Simplify right side
    136,086.57x = 14,818,337,658.87
  5. Step 5: Solve for x
    x = 14,818,337,658.87/136,086.57
  6. Step 6: Final answer
    x = 108,889.05

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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.