Home / 124,824-187,124.76-45,919.20

Finding the Fourth Proportional to 124,824, 187,124.76 and 45,919.20

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Solution

The fourth proportional to 124,824, 187,124.76 and 45,919.20 is: 68,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,824 : 187,124.76 = 45,919.20 : x
  2. Step 2: Convert to fraction form
    124,824/187,124.76 = 45,919.20/x
  3. Step 3: Cross multiply
    124,824x = 187,124.76 × 45,919.20
  4. Step 4: Simplify right side
    124,824x = 8,592,619,279.39
  5. Step 5: Solve for x
    x = 8,592,619,279.39/124,824
  6. Step 6: Final answer
    x = 68,837.88

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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.