Home / 140,948.80-211,442.40-52,180.80

Finding the Fourth Proportional to 140,948.80, 211,442.40 and 52,180.80

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Solution

The fourth proportional to 140,948.80, 211,442.40 and 52,180.80 is: 78,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,948.80 : 211,442.40 = 52,180.80 : x
  2. Step 2: Convert to fraction form
    140,948.80/211,442.40 = 52,180.80/x
  3. Step 3: Cross multiply
    140,948.80x = 211,442.40 × 52,180.80
  4. Step 4: Simplify right side
    140,948.80x = 11,033,233,585.92
  5. Step 5: Solve for x
    x = 11,033,233,585.92/140,948.80
  6. Step 6: Final answer
    x = 78,278.31

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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.