Home / 108,721.70-163,082.55-97,835.30

Finding the Fourth Proportional to 108,721.70, 163,082.55 and 97,835.30

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Solution

The fourth proportional to 108,721.70, 163,082.55 and 97,835.30 is: 146,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,721.70 : 163,082.55 = 97,835.30 : x
  2. Step 2: Convert to fraction form
    108,721.70/163,082.55 = 97,835.30/x
  3. Step 3: Cross multiply
    108,721.70x = 163,082.55 × 97,835.30
  4. Step 4: Simplify right side
    108,721.70x = 15,955,230,204.02
  5. Step 5: Solve for x
    x = 15,955,230,204.02/108,721.70
  6. Step 6: Final answer
    x = 146,752.95

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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.