Home / 140,789.15-194,293.85-77,126.93

Finding the Fourth Proportional to 140,789.15, 194,293.85 and 77,126.93

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Solution

The fourth proportional to 140,789.15, 194,293.85 and 77,126.93 is: 106,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,789.15 : 194,293.85 = 77,126.93 : x
  2. Step 2: Convert to fraction form
    140,789.15/194,293.85 = 77,126.93/x
  3. Step 3: Cross multiply
    140,789.15x = 194,293.85 × 77,126.93
  4. Step 4: Simplify right side
    140,789.15x = 14,985,286,811.28
  5. Step 5: Solve for x
    x = 14,985,286,811.28/140,789.15
  6. Step 6: Final answer
    x = 106,437.80

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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.