Home / 108,308.31-149,465.49-60,561.78

Finding the Fourth Proportional to 108,308.31, 149,465.49 and 60,561.78

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Solution

The fourth proportional to 108,308.31, 149,465.49 and 60,561.78 is: 83,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,308.31 : 149,465.49 = 60,561.78 : x
  2. Step 2: Convert to fraction form
    108,308.31/149,465.49 = 60,561.78/x
  3. Step 3: Cross multiply
    108,308.31x = 149,465.49 × 60,561.78
  4. Step 4: Simplify right side
    108,308.31x = 9,051,896,122.97
  5. Step 5: Solve for x
    x = 9,051,896,122.97/108,308.31
  6. Step 6: Final answer
    x = 83,575.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.