Home / 127,931.28-191,850.84-54,065.04

Finding the Fourth Proportional to 127,931.28, 191,850.84 and 54,065.04

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Solution

The fourth proportional to 127,931.28, 191,850.84 and 54,065.04 is: 81,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,931.28 : 191,850.84 = 54,065.04 : x
  2. Step 2: Convert to fraction form
    127,931.28/191,850.84 = 54,065.04/x
  3. Step 3: Cross multiply
    127,931.28x = 191,850.84 × 54,065.04
  4. Step 4: Simplify right side
    127,931.28x = 10,372,423,338.63
  5. Step 5: Solve for x
    x = 10,372,423,338.63/127,931.28
  6. Step 6: Final answer
    x = 81,078.09

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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.