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Finding the Fourth Proportional to 94,194.30, 129,916.52 and 65,170.96

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Solution

The fourth proportional to 94,194.30, 129,916.52 and 65,170.96 is: 89,886.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,194.30 : 129,916.52 = 65,170.96 : x
  2. Step 2: Convert to fraction form
    94,194.30/129,916.52 = 65,170.96/x
  3. Step 3: Cross multiply
    94,194.30x = 129,916.52 × 65,170.96
  4. Step 4: Simplify right side
    94,194.30x = 8,466,785,019.37
  5. Step 5: Solve for x
    x = 8,466,785,019.37/94,194.30
  6. Step 6: Final answer
    x = 89,886.38

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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.