Home / 140,476.77-193,861.04-76,820.49

Finding the Fourth Proportional to 140,476.77, 193,861.04 and 76,820.49

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Solution

The fourth proportional to 140,476.77, 193,861.04 and 76,820.49 is: 106,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,476.77 : 193,861.04 = 76,820.49 : x
  2. Step 2: Convert to fraction form
    140,476.77/193,861.04 = 76,820.49/x
  3. Step 3: Cross multiply
    140,476.77x = 193,861.04 × 76,820.49
  4. Step 4: Simplify right side
    140,476.77x = 14,892,499,700.61
  5. Step 5: Solve for x
    x = 14,892,499,700.61/140,476.77
  6. Step 6: Final answer
    x = 106,013.97

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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.