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Finding the Fourth Proportional to 96,650.80, 145,267.80 and 83,820.40

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Solution

The fourth proportional to 96,650.80, 145,267.80 and 83,820.40 is: 125,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,650.80 : 145,267.80 = 83,820.40 : x
  2. Step 2: Convert to fraction form
    96,650.80/145,267.80 = 83,820.40/x
  3. Step 3: Cross multiply
    96,650.80x = 145,267.80 × 83,820.40
  4. Step 4: Simplify right side
    96,650.80x = 12,176,405,103.12
  5. Step 5: Solve for x
    x = 12,176,405,103.12/96,650.80
  6. Step 6: Final answer
    x = 125,983.49

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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.