Home / 144,378.33-216,145.17-84,222.87

Finding the Fourth Proportional to 144,378.33, 216,145.17 and 84,222.87

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Solution

The fourth proportional to 144,378.33, 216,145.17 and 84,222.87 is: 126,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,378.33 : 216,145.17 = 84,222.87 : x
  2. Step 2: Convert to fraction form
    144,378.33/216,145.17 = 84,222.87/x
  3. Step 3: Cross multiply
    144,378.33x = 216,145.17 × 84,222.87
  4. Step 4: Simplify right side
    144,378.33x = 18,204,366,554.04
  5. Step 5: Solve for x
    x = 18,204,366,554.04/144,378.33
  6. Step 6: Final answer
    x = 126,087.94

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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.