Home / 125,034.10-172,367.70-89,161.90

Finding the Fourth Proportional to 125,034.10, 172,367.70 and 89,161.90

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Solution

The fourth proportional to 125,034.10, 172,367.70 and 89,161.90 is: 122,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,034.10 : 172,367.70 = 89,161.90 : x
  2. Step 2: Convert to fraction form
    125,034.10/172,367.70 = 89,161.90/x
  3. Step 3: Cross multiply
    125,034.10x = 172,367.70 × 89,161.90
  4. Step 4: Simplify right side
    125,034.10x = 15,368,631,630.63
  5. Step 5: Solve for x
    x = 15,368,631,630.63/125,034.10
  6. Step 6: Final answer
    x = 122,915.52

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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.