Home / 268,723.20-402,945.36-79,158.96

Finding the Fourth Proportional to 268,723.20, 402,945.36 and 79,158.96

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Solution

The fourth proportional to 268,723.20, 402,945.36 and 79,158.96 is: 118,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,723.20 : 402,945.36 = 79,158.96 : x
  2. Step 2: Convert to fraction form
    268,723.20/402,945.36 = 79,158.96/x
  3. Step 3: Cross multiply
    268,723.20x = 402,945.36 × 79,158.96
  4. Step 4: Simplify right side
    268,723.20x = 31,896,735,634.43
  5. Step 5: Solve for x
    x = 31,896,735,634.43/268,723.20
  6. Step 6: Final answer
    x = 118,697.36

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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.