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Finding the Fourth Proportional to 121,471.40, 167,630.80 and 67,755.04

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Solution

The fourth proportional to 121,471.40, 167,630.80 and 67,755.04 is: 93,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,471.40 : 167,630.80 = 67,755.04 : x
  2. Step 2: Convert to fraction form
    121,471.40/167,630.80 = 67,755.04/x
  3. Step 3: Cross multiply
    121,471.40x = 167,630.80 × 67,755.04
  4. Step 4: Simplify right side
    121,471.40x = 11,357,831,559.23
  5. Step 5: Solve for x
    x = 11,357,831,559.23/121,471.40
  6. Step 6: Final answer
    x = 93,502.10

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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.