Home / 147,048.40-220,135.20-87,853.60

Finding the Fourth Proportional to 147,048.40, 220,135.20 and 87,853.60

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Solution

The fourth proportional to 147,048.40, 220,135.20 and 87,853.60 is: 131,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,048.40 : 220,135.20 = 87,853.60 : x
  2. Step 2: Convert to fraction form
    147,048.40/220,135.20 = 87,853.60/x
  3. Step 3: Cross multiply
    147,048.40x = 220,135.20 × 87,853.60
  4. Step 4: Simplify right side
    147,048.40x = 19,339,669,806.72
  5. Step 5: Solve for x
    x = 19,339,669,806.72/147,048.40
  6. Step 6: Final answer
    x = 131,519.08

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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.