Home / 143,928.28-215,894.94-55,186.84

Finding the Fourth Proportional to 143,928.28, 215,894.94 and 55,186.84

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Solution

The fourth proportional to 143,928.28, 215,894.94 and 55,186.84 is: 82,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,928.28 : 215,894.94 = 55,186.84 : x
  2. Step 2: Convert to fraction form
    143,928.28/215,894.94 = 55,186.84/x
  3. Step 3: Cross multiply
    143,928.28x = 215,894.94 × 55,186.84
  4. Step 4: Simplify right side
    143,928.28x = 11,914,559,510.59
  5. Step 5: Solve for x
    x = 11,914,559,510.59/143,928.28
  6. Step 6: Final answer
    x = 82,781.23

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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.