Home / 140,211.88-193,514.61-89,171.40

Finding the Fourth Proportional to 140,211.88, 193,514.61 and 89,171.40

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Solution

The fourth proportional to 140,211.88, 193,514.61 and 89,171.40 is: 123,070.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.88 : 193,514.61 = 89,171.40 : x
  2. Step 2: Convert to fraction form
    140,211.88/193,514.61 = 89,171.40/x
  3. Step 3: Cross multiply
    140,211.88x = 193,514.61 × 89,171.40
  4. Step 4: Simplify right side
    140,211.88x = 17,255,968,694.15
  5. Step 5: Solve for x
    x = 17,255,968,694.15/140,211.88
  6. Step 6: Final answer
    x = 123,070.66

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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.