Home / 144,001.18-216,001.77-81,793.18

Finding the Fourth Proportional to 144,001.18, 216,001.77 and 81,793.18

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Solution

The fourth proportional to 144,001.18, 216,001.77 and 81,793.18 is: 122,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,001.18 : 216,001.77 = 81,793.18 : x
  2. Step 2: Convert to fraction form
    144,001.18/216,001.77 = 81,793.18/x
  3. Step 3: Cross multiply
    144,001.18x = 216,001.77 × 81,793.18
  4. Step 4: Simplify right side
    144,001.18x = 17,667,470,164.95
  5. Step 5: Solve for x
    x = 17,667,470,164.95/144,001.18
  6. Step 6: Final answer
    x = 122,689.76

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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.