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Finding the Fourth Proportional to 144,026.80, 216,040.20 and 108,257.20

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Solution

The fourth proportional to 144,026.80, 216,040.20 and 108,257.20 is: 162,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,026.80 : 216,040.20 = 108,257.20 : x
  2. Step 2: Convert to fraction form
    144,026.80/216,040.20 = 108,257.20/x
  3. Step 3: Cross multiply
    144,026.80x = 216,040.20 × 108,257.20
  4. Step 4: Simplify right side
    144,026.80x = 23,387,907,139.44
  5. Step 5: Solve for x
    x = 23,387,907,139.44/144,026.80
  6. Step 6: Final answer
    x = 162,385.80

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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.