Home / 453,629.96-680,543.34-138,078.66

Finding the Fourth Proportional to 453,629.96, 680,543.34 and 138,078.66

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Solution

The fourth proportional to 453,629.96, 680,543.34 and 138,078.66 is: 207,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,629.96 : 680,543.34 = 138,078.66 : x
  2. Step 2: Convert to fraction form
    453,629.96/680,543.34 = 138,078.66/x
  3. Step 3: Cross multiply
    453,629.96x = 680,543.34 × 138,078.66
  4. Step 4: Simplify right side
    453,629.96x = 93,968,512,459.12
  5. Step 5: Solve for x
    x = 93,968,512,459.12/453,629.96
  6. Step 6: Final answer
    x = 207,147.94

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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.