Home / 140,087.15-193,319.37-79,657.79

Finding the Fourth Proportional to 140,087.15, 193,319.37 and 79,657.79

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Solution

The fourth proportional to 140,087.15, 193,319.37 and 79,657.79 is: 109,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,087.15 : 193,319.37 = 79,657.79 : x
  2. Step 2: Convert to fraction form
    140,087.15/193,319.37 = 79,657.79/x
  3. Step 3: Cross multiply
    140,087.15x = 193,319.37 × 79,657.79
  4. Step 4: Simplify right side
    140,087.15x = 15,399,393,863.40
  5. Step 5: Solve for x
    x = 15,399,393,863.40/140,087.15
  6. Step 6: Final answer
    x = 109,927.24

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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.