Home / 100,167.24-138,225.52-54,836.52

Finding the Fourth Proportional to 100,167.24, 138,225.52 and 54,836.52

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Solution

The fourth proportional to 100,167.24, 138,225.52 and 54,836.52 is: 75,671.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,167.24 : 138,225.52 = 54,836.52 : x
  2. Step 2: Convert to fraction form
    100,167.24/138,225.52 = 54,836.52/x
  3. Step 3: Cross multiply
    100,167.24x = 138,225.52 × 54,836.52
  4. Step 4: Simplify right side
    100,167.24x = 7,579,806,491.99
  5. Step 5: Solve for x
    x = 7,579,806,491.99/100,167.24
  6. Step 6: Final answer
    x = 75,671.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.