Home / 141,521.80-212,282.70-136,078.60

Finding the Fourth Proportional to 141,521.80, 212,282.70 and 136,078.60

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Solution

The fourth proportional to 141,521.80, 212,282.70 and 136,078.60 is: 204,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,521.80 : 212,282.70 = 136,078.60 : x
  2. Step 2: Convert to fraction form
    141,521.80/212,282.70 = 136,078.60/x
  3. Step 3: Cross multiply
    141,521.80x = 212,282.70 × 136,078.60
  4. Step 4: Simplify right side
    141,521.80x = 28,887,132,620.22
  5. Step 5: Solve for x
    x = 28,887,132,620.22/141,521.80
  6. Step 6: Final answer
    x = 204,117.90

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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.