Home / 125,012.86-172,517.43-68,423.74

Finding the Fourth Proportional to 125,012.86, 172,517.43 and 68,423.74

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Solution

The fourth proportional to 125,012.86, 172,517.43 and 68,423.74 is: 94,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,012.86 : 172,517.43 = 68,423.74 : x
  2. Step 2: Convert to fraction form
    125,012.86/172,517.43 = 68,423.74/x
  3. Step 3: Cross multiply
    125,012.86x = 172,517.43 × 68,423.74
  4. Step 4: Simplify right side
    125,012.86x = 11,804,287,775.79
  5. Step 5: Solve for x
    x = 11,804,287,775.79/125,012.86
  6. Step 6: Final answer
    x = 94,424.59

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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.