Home / 140,377.86-193,721.52-76,715.66

Finding the Fourth Proportional to 140,377.86, 193,721.52 and 76,715.66

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Solution

The fourth proportional to 140,377.86, 193,721.52 and 76,715.66 is: 105,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,377.86 : 193,721.52 = 76,715.66 : x
  2. Step 2: Convert to fraction form
    140,377.86/193,721.52 = 76,715.66/x
  3. Step 3: Cross multiply
    140,377.86x = 193,721.52 × 76,715.66
  4. Step 4: Simplify right side
    140,377.86x = 14,861,473,294.40
  5. Step 5: Solve for x
    x = 14,861,473,294.40/140,377.86
  6. Step 6: Final answer
    x = 105,867.64

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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.