Home / 130,861.15-196,291.82-42,114.62

Finding the Fourth Proportional to 130,861.15, 196,291.82 and 42,114.62

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Solution

The fourth proportional to 130,861.15, 196,291.82 and 42,114.62 is: 63,171.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,861.15 : 196,291.82 = 42,114.62 : x
  2. Step 2: Convert to fraction form
    130,861.15/196,291.82 = 42,114.62/x
  3. Step 3: Cross multiply
    130,861.15x = 196,291.82 × 42,114.62
  4. Step 4: Simplify right side
    130,861.15x = 8,266,756,004.42
  5. Step 5: Solve for x
    x = 8,266,756,004.42/130,861.15
  6. Step 6: Final answer
    x = 63,171.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.