Home / 142,023.76-212,832.60-104,287.75

Finding the Fourth Proportional to 142,023.76, 212,832.60 and 104,287.75

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Solution

The fourth proportional to 142,023.76, 212,832.60 and 104,287.75 is: 156,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,023.76 : 212,832.60 = 104,287.75 : x
  2. Step 2: Convert to fraction form
    142,023.76/212,832.60 = 104,287.75/x
  3. Step 3: Cross multiply
    142,023.76x = 212,832.60 × 104,287.75
  4. Step 4: Simplify right side
    142,023.76x = 22,195,832,980.65
  5. Step 5: Solve for x
    x = 22,195,832,980.65/142,023.76
  6. Step 6: Final answer
    x = 156,282.53

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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.