Home / 142,039.20-213,003.42-53,244.25

Finding the Fourth Proportional to 142,039.20, 213,003.42 and 53,244.25

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Solution

The fourth proportional to 142,039.20, 213,003.42 and 53,244.25 is: 79,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,039.20 : 213,003.42 = 53,244.25 : x
  2. Step 2: Convert to fraction form
    142,039.20/213,003.42 = 53,244.25/x
  3. Step 3: Cross multiply
    142,039.20x = 213,003.42 × 53,244.25
  4. Step 4: Simplify right side
    142,039.20x = 11,341,207,345.34
  5. Step 5: Solve for x
    x = 11,341,207,345.34/142,039.20
  6. Step 6: Final answer
    x = 79,845.62

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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.