Home / 96,890.10-145,335.15-91,446.90

Finding the Fourth Proportional to 96,890.10, 145,335.15 and 91,446.90

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Solution

The fourth proportional to 96,890.10, 145,335.15 and 91,446.90 is: 137,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,890.10 : 145,335.15 = 91,446.90 : x
  2. Step 2: Convert to fraction form
    96,890.10/145,335.15 = 91,446.90/x
  3. Step 3: Cross multiply
    96,890.10x = 145,335.15 × 91,446.90
  4. Step 4: Simplify right side
    96,890.10x = 13,290,448,928.54
  5. Step 5: Solve for x
    x = 13,290,448,928.54/96,890.10
  6. Step 6: Final answer
    x = 137,170.35

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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.