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Finding the Fourth Proportional to 129,793, 179,114.34 and 70,177

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Solution

The fourth proportional to 129,793, 179,114.34 and 70,177 is: 96,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,793 : 179,114.34 = 70,177 : x
  2. Step 2: Convert to fraction form
    129,793/179,114.34 = 70,177/x
  3. Step 3: Cross multiply
    129,793x = 179,114.34 × 70,177
  4. Step 4: Simplify right side
    129,793x = 12,569,707,038.18
  5. Step 5: Solve for x
    x = 12,569,707,038.18/129,793
  6. Step 6: Final answer
    x = 96,844.26

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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.