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Finding the Fourth Proportional to 121,359, 167,476.24 and 67,647.44

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Solution

The fourth proportional to 121,359, 167,476.24 and 67,647.44 is: 93,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359 : 167,476.24 = 67,647.44 : x
  2. Step 2: Convert to fraction form
    121,359/167,476.24 = 67,647.44/x
  3. Step 3: Cross multiply
    121,359x = 167,476.24 × 67,647.44
  4. Step 4: Simplify right side
    121,359x = 11,329,338,896.83
  5. Step 5: Solve for x
    x = 11,329,338,896.83/121,359
  6. Step 6: Final answer
    x = 93,353.92

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1.5x scale

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.