Home / 146,720.12-220,111.76-45,516.12

Finding the Fourth Proportional to 146,720.12, 220,111.76 and 45,516.12

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Solution

The fourth proportional to 146,720.12, 220,111.76 and 45,516.12 is: 68,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,720.12 : 220,111.76 = 45,516.12 : x
  2. Step 2: Convert to fraction form
    146,720.12/220,111.76 = 45,516.12/x
  3. Step 3: Cross multiply
    146,720.12x = 220,111.76 × 45,516.12
  4. Step 4: Simplify right side
    146,720.12x = 10,018,632,569.94
  5. Step 5: Solve for x
    x = 10,018,632,569.94/146,720.12
  6. Step 6: Final answer
    x = 68,283.97

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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.