Home / 108,763.09-163,113.08-45,581.56

Finding the Fourth Proportional to 108,763.09, 163,113.08 and 45,581.56

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Solution

The fourth proportional to 108,763.09, 163,113.08 and 45,581.56 is: 68,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,763.09 : 163,113.08 = 45,581.56 : x
  2. Step 2: Convert to fraction form
    108,763.09/163,113.08 = 45,581.56/x
  3. Step 3: Cross multiply
    108,763.09x = 163,113.08 × 45,581.56
  4. Step 4: Simplify right side
    108,763.09x = 7,434,948,007.11
  5. Step 5: Solve for x
    x = 7,434,948,007.11/108,763.09
  6. Step 6: Final answer
    x = 68,359.11

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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.