Home / 136,521.88-204,642.36-52,262.20

Finding the Fourth Proportional to 136,521.88, 204,642.36 and 52,262.20

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Solution

The fourth proportional to 136,521.88, 204,642.36 and 52,262.20 is: 78,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,521.88 : 204,642.36 = 52,262.20 : x
  2. Step 2: Convert to fraction form
    136,521.88/204,642.36 = 52,262.20/x
  3. Step 3: Cross multiply
    136,521.88x = 204,642.36 × 52,262.20
  4. Step 4: Simplify right side
    136,521.88x = 10,695,059,946.79
  5. Step 5: Solve for x
    x = 10,695,059,946.79/136,521.88
  6. Step 6: Final answer
    x = 78,339.53

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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.