Home / 140,121.34-193,373.26-79,702.62

Finding the Fourth Proportional to 140,121.34, 193,373.26 and 79,702.62

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Solution

The fourth proportional to 140,121.34, 193,373.26 and 79,702.62 is: 109,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121.34 : 193,373.26 = 79,702.62 : x
  2. Step 2: Convert to fraction form
    140,121.34/193,373.26 = 79,702.62/x
  3. Step 3: Cross multiply
    140,121.34x = 193,373.26 × 79,702.62
  4. Step 4: Simplify right side
    140,121.34x = 15,412,355,459.94
  5. Step 5: Solve for x
    x = 15,412,355,459.94/140,121.34
  6. Step 6: Final answer
    x = 109,992.92

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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.