Home / 147,282.60-221,020.74-80,769.54

Finding the Fourth Proportional to 147,282.60, 221,020.74 and 80,769.54

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Solution

The fourth proportional to 147,282.60, 221,020.74 and 80,769.54 is: 121,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,282.60 : 221,020.74 = 80,769.54 : x
  2. Step 2: Convert to fraction form
    147,282.60/221,020.74 = 80,769.54/x
  3. Step 3: Cross multiply
    147,282.60x = 221,020.74 × 80,769.54
  4. Step 4: Simplify right side
    147,282.60x = 17,851,743,500.26
  5. Step 5: Solve for x
    x = 17,851,743,500.26/147,282.60
  6. Step 6: Final answer
    x = 121,207.42

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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.