Home / 97,632.80-146,449.20-90,634.40

Finding the Fourth Proportional to 97,632.80, 146,449.20 and 90,634.40

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Solution

The fourth proportional to 97,632.80, 146,449.20 and 90,634.40 is: 135,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,632.80 : 146,449.20 = 90,634.40 : x
  2. Step 2: Convert to fraction form
    97,632.80/146,449.20 = 90,634.40/x
  3. Step 3: Cross multiply
    97,632.80x = 146,449.20 × 90,634.40
  4. Step 4: Simplify right side
    97,632.80x = 13,273,335,372.48
  5. Step 5: Solve for x
    x = 13,273,335,372.48/97,632.80
  6. Step 6: Final answer
    x = 135,951.60

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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.