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Finding the Fourth Proportional to 96,017.20, 144,025.80 and 80,810.80

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Solution

The fourth proportional to 96,017.20, 144,025.80 and 80,810.80 is: 121,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,017.20 : 144,025.80 = 80,810.80 : x
  2. Step 2: Convert to fraction form
    96,017.20/144,025.80 = 80,810.80/x
  3. Step 3: Cross multiply
    96,017.20x = 144,025.80 × 80,810.80
  4. Step 4: Simplify right side
    96,017.20x = 11,638,840,118.64
  5. Step 5: Solve for x
    x = 11,638,840,118.64/96,017.20
  6. Step 6: Final answer
    x = 121,216.20

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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.