Home / 140,080.07-193,310.25-76,417.88

Finding the Fourth Proportional to 140,080.07, 193,310.25 and 76,417.88

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Solution

The fourth proportional to 140,080.07, 193,310.25 and 76,417.88 is: 105,456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,080.07 : 193,310.25 = 76,417.88 : x
  2. Step 2: Convert to fraction form
    140,080.07/193,310.25 = 76,417.88/x
  3. Step 3: Cross multiply
    140,080.07x = 193,310.25 × 76,417.88
  4. Step 4: Simplify right side
    140,080.07x = 14,772,358,520.72
  5. Step 5: Solve for x
    x = 14,772,358,520.72/140,080.07
  6. Step 6: Final answer
    x = 105,456.54

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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.