Home / 108,522.40-162,937.20-85,175.20

Finding the Fourth Proportional to 108,522.40, 162,937.20 and 85,175.20

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Solution

The fourth proportional to 108,522.40, 162,937.20 and 85,175.20 is: 127,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,522.40 : 162,937.20 = 85,175.20 : x
  2. Step 2: Convert to fraction form
    108,522.40/162,937.20 = 85,175.20/x
  3. Step 3: Cross multiply
    108,522.40x = 162,937.20 × 85,175.20
  4. Step 4: Simplify right side
    108,522.40x = 13,878,208,597.44
  5. Step 5: Solve for x
    x = 13,878,208,597.44/108,522.40
  6. Step 6: Final answer
    x = 127,883.35

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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.