Home / 140,366.72-193,708.86-76,708.46

Finding the Fourth Proportional to 140,366.72, 193,708.86 and 76,708.46

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Solution

The fourth proportional to 140,366.72, 193,708.86 and 76,708.46 is: 105,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,366.72 : 193,708.86 = 76,708.46 : x
  2. Step 2: Convert to fraction form
    140,366.72/193,708.86 = 76,708.46/x
  3. Step 3: Cross multiply
    140,366.72x = 193,708.86 × 76,708.46
  4. Step 4: Simplify right side
    140,366.72x = 14,859,108,338.96
  5. Step 5: Solve for x
    x = 14,859,108,338.96/140,366.72
  6. Step 6: Final answer
    x = 105,859.20

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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.