Home / 268,237.10-402,236.85-90,695.90

Finding the Fourth Proportional to 268,237.10, 402,236.85 and 90,695.90

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Solution

The fourth proportional to 268,237.10, 402,236.85 and 90,695.90 is: 136,003.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,237.10 : 402,236.85 = 90,695.90 : x
  2. Step 2: Convert to fraction form
    268,237.10/402,236.85 = 90,695.90/x
  3. Step 3: Cross multiply
    268,237.10x = 402,236.85 × 90,695.90
  4. Step 4: Simplify right side
    268,237.10x = 36,481,233,123.92
  5. Step 5: Solve for x
    x = 36,481,233,123.92/268,237.10
  6. Step 6: Final answer
    x = 136,003.68

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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.