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Finding the Fourth Proportional to 121,732.76, 167,980.28 and 68,010.32

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Solution

The fourth proportional to 121,732.76, 167,980.28 and 68,010.32 is: 93,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,732.76 : 167,980.28 = 68,010.32 : x
  2. Step 2: Convert to fraction form
    121,732.76/167,980.28 = 68,010.32/x
  3. Step 3: Cross multiply
    121,732.76x = 167,980.28 × 68,010.32
  4. Step 4: Simplify right side
    121,732.76x = 11,424,391,416.54
  5. Step 5: Solve for x
    x = 11,424,391,416.54/121,732.76
  6. Step 6: Final answer
    x = 93,848.13

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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.