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Finding the Fourth Proportional to 121,534.73, 167,726.35 and 67,830.21

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Solution

The fourth proportional to 121,534.73, 167,726.35 and 67,830.21 is: 93,610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,534.73 : 167,726.35 = 67,830.21 : x
  2. Step 2: Convert to fraction form
    121,534.73/167,726.35 = 67,830.21/x
  3. Step 3: Cross multiply
    121,534.73x = 167,726.35 × 67,830.21
  4. Step 4: Simplify right side
    121,534.73x = 11,376,913,246.28
  5. Step 5: Solve for x
    x = 11,376,913,246.28/121,534.73
  6. Step 6: Final answer
    x = 93,610.39

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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.