Home / 140,147.40-193,406.22-76,487.88

Finding the Fourth Proportional to 140,147.40, 193,406.22 and 76,487.88

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Solution

The fourth proportional to 140,147.40, 193,406.22 and 76,487.88 is: 105,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,147.40 : 193,406.22 = 76,487.88 : x
  2. Step 2: Convert to fraction form
    140,147.40/193,406.22 = 76,487.88/x
  3. Step 3: Cross multiply
    140,147.40x = 193,406.22 × 76,487.88
  4. Step 4: Simplify right side
    140,147.40x = 14,793,231,746.61
  5. Step 5: Solve for x
    x = 14,793,231,746.61/140,147.40
  6. Step 6: Final answer
    x = 105,554.81

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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.