Home / 108,121.20-149,206.74-60,374.58

Finding the Fourth Proportional to 108,121.20, 149,206.74 and 60,374.58

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Solution

The fourth proportional to 108,121.20, 149,206.74 and 60,374.58 is: 83,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,121.20 : 149,206.74 = 60,374.58 : x
  2. Step 2: Convert to fraction form
    108,121.20/149,206.74 = 60,374.58/x
  3. Step 3: Cross multiply
    108,121.20x = 149,206.74 × 60,374.58
  4. Step 4: Simplify right side
    108,121.20x = 9,008,294,260.67
  5. Step 5: Solve for x
    x = 9,008,294,260.67/108,121.20
  6. Step 6: Final answer
    x = 83,316.63

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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.