Home / 108,279.36-162,428.40-38,159.28

Finding the Fourth Proportional to 108,279.36, 162,428.40 and 38,159.28

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Solution

The fourth proportional to 108,279.36, 162,428.40 and 38,159.28 is: 57,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,279.36 : 162,428.40 = 38,159.28 : x
  2. Step 2: Convert to fraction form
    108,279.36/162,428.40 = 38,159.28/x
  3. Step 3: Cross multiply
    108,279.36x = 162,428.40 × 38,159.28
  4. Step 4: Simplify right side
    108,279.36x = 6,198,150,795.55
  5. Step 5: Solve for x
    x = 6,198,150,795.55/108,279.36
  6. Step 6: Final answer
    x = 57,242.22

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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.