Home / 108,428.22-149,630.94-60,681.60

Finding the Fourth Proportional to 108,428.22, 149,630.94 and 60,681.60

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Solution

The fourth proportional to 108,428.22, 149,630.94 and 60,681.60 is: 83,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,428.22 : 149,630.94 = 60,681.60 : x
  2. Step 2: Convert to fraction form
    108,428.22/149,630.94 = 60,681.60/x
  3. Step 3: Cross multiply
    108,428.22x = 149,630.94 × 60,681.60
  4. Step 4: Simplify right side
    108,428.22x = 9,079,844,848.70
  5. Step 5: Solve for x
    x = 9,079,844,848.70/108,428.22
  6. Step 6: Final answer
    x = 83,740.61

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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.