Home / 108,748.40-162,928.20-88,919.60

Finding the Fourth Proportional to 108,748.40, 162,928.20 and 88,919.60

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Solution

The fourth proportional to 108,748.40, 162,928.20 and 88,919.60 is: 133,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,748.40 : 162,928.20 = 88,919.60 : x
  2. Step 2: Convert to fraction form
    108,748.40/162,928.20 = 88,919.60/x
  3. Step 3: Cross multiply
    108,748.40x = 162,928.20 × 88,919.60
  4. Step 4: Simplify right side
    108,748.40x = 14,487,510,372.72
  5. Step 5: Solve for x
    x = 14,487,510,372.72/108,748.40
  6. Step 6: Final answer
    x = 133,220.45

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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.