Home / 140,674.68-194,130.48-76,143.96

Finding the Fourth Proportional to 140,674.68, 194,130.48 and 76,143.96

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Solution

The fourth proportional to 140,674.68, 194,130.48 and 76,143.96 is: 105,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,674.68 : 194,130.48 = 76,143.96 : x
  2. Step 2: Convert to fraction form
    140,674.68/194,130.48 = 76,143.96/x
  3. Step 3: Cross multiply
    140,674.68x = 194,130.48 × 76,143.96
  4. Step 4: Simplify right side
    140,674.68x = 14,781,863,503.90
  5. Step 5: Solve for x
    x = 14,781,863,503.90/140,674.68
  6. Step 6: Final answer
    x = 105,078.35

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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.