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Finding the Fourth Proportional to 121,376.16, 167,495.65 and 67,660.07

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Solution

The fourth proportional to 121,376.16, 167,495.65 and 67,660.07 is: 93,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,376.16 : 167,495.65 = 67,660.07 : x
  2. Step 2: Convert to fraction form
    121,376.16/167,495.65 = 67,660.07/x
  3. Step 3: Cross multiply
    121,376.16x = 167,495.65 × 67,660.07
  4. Step 4: Simplify right side
    121,376.16x = 11,332,766,397.07
  5. Step 5: Solve for x
    x = 11,332,766,397.07/121,376.16
  6. Step 6: Final answer
    x = 93,368.96

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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.