Home / 142,926.86-197,234.10-79,270.58

Finding the Fourth Proportional to 142,926.86, 197,234.10 and 79,270.58

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Solution

The fourth proportional to 142,926.86, 197,234.10 and 79,270.58 is: 109,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.86 : 197,234.10 = 79,270.58 : x
  2. Step 2: Convert to fraction form
    142,926.86/197,234.10 = 79,270.58/x
  3. Step 3: Cross multiply
    142,926.86x = 197,234.10 × 79,270.58
  4. Step 4: Simplify right side
    142,926.86x = 15,634,861,502.78
  5. Step 5: Solve for x
    x = 15,634,861,502.78/142,926.86
  6. Step 6: Final answer
    x = 109,390.65

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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.