Home / 153,981.20-230,971.80-100,837.10

Finding the Fourth Proportional to 153,981.20, 230,971.80 and 100,837.10

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Solution

The fourth proportional to 153,981.20, 230,971.80 and 100,837.10 is: 151,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,981.20 : 230,971.80 = 100,837.10 : x
  2. Step 2: Convert to fraction form
    153,981.20/230,971.80 = 100,837.10/x
  3. Step 3: Cross multiply
    153,981.20x = 230,971.80 × 100,837.10
  4. Step 4: Simplify right side
    153,981.20x = 23,290,526,493.78
  5. Step 5: Solve for x
    x = 23,290,526,493.78/153,981.20
  6. Step 6: Final answer
    x = 151,255.65

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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.