Home / 108,915.12-163,343.52-30,033.68

Finding the Fourth Proportional to 108,915.12, 163,343.52 and 30,033.68

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Solution

The fourth proportional to 108,915.12, 163,343.52 and 30,033.68 is: 45,042.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,915.12 : 163,343.52 = 30,033.68 : x
  2. Step 2: Convert to fraction form
    108,915.12/163,343.52 = 30,033.68/x
  3. Step 3: Cross multiply
    108,915.12x = 163,343.52 × 30,033.68
  4. Step 4: Simplify right side
    108,915.12x = 4,905,806,193.04
  5. Step 5: Solve for x
    x = 4,905,806,193.04/108,915.12
  6. Step 6: Final answer
    x = 45,042.47

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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.