Home / 100,543.03-150,781.06-40,556.02

Finding the Fourth Proportional to 100,543.03, 150,781.06 and 40,556.02

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Solution

The fourth proportional to 100,543.03, 150,781.06 and 40,556.02 is: 60,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,543.03 : 150,781.06 = 40,556.02 : x
  2. Step 2: Convert to fraction form
    100,543.03/150,781.06 = 40,556.02/x
  3. Step 3: Cross multiply
    100,543.03x = 150,781.06 × 40,556.02
  4. Step 4: Simplify right side
    100,543.03x = 6,115,078,728.30
  5. Step 5: Solve for x
    x = 6,115,078,728.30/100,543.03
  6. Step 6: Final answer
    x = 60,820.51

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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.