Home / 108,981.10-163,372.62-97,171.30

Finding the Fourth Proportional to 108,981.10, 163,372.62 and 97,171.30

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Solution

The fourth proportional to 108,981.10, 163,372.62 and 97,171.30 is: 145,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,981.10 : 163,372.62 = 97,171.30 : x
  2. Step 2: Convert to fraction form
    108,981.10/163,372.62 = 97,171.30/x
  3. Step 3: Cross multiply
    108,981.10x = 163,372.62 × 97,171.30
  4. Step 4: Simplify right side
    108,981.10x = 15,875,129,869.81
  5. Step 5: Solve for x
    x = 15,875,129,869.81/108,981.10
  6. Step 6: Final answer
    x = 145,668.65

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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.