Home / 130,879.65-196,350.23-42,129.82

Finding the Fourth Proportional to 130,879.65, 196,350.23 and 42,129.82

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Solution

The fourth proportional to 130,879.65, 196,350.23 and 42,129.82 is: 63,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,879.65 : 196,350.23 = 42,129.82 : x
  2. Step 2: Convert to fraction form
    130,879.65/196,350.23 = 42,129.82/x
  3. Step 3: Cross multiply
    130,879.65x = 196,350.23 × 42,129.82
  4. Step 4: Simplify right side
    130,879.65x = 8,272,199,960.64
  5. Step 5: Solve for x
    x = 8,272,199,960.64/130,879.65
  6. Step 6: Final answer
    x = 63,204.63

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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.