Home / 108,534.70-162,802.05-64,138.60

Finding the Fourth Proportional to 108,534.70, 162,802.05 and 64,138.60

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Solution

The fourth proportional to 108,534.70, 162,802.05 and 64,138.60 is: 96,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,534.70 : 162,802.05 = 64,138.60 : x
  2. Step 2: Convert to fraction form
    108,534.70/162,802.05 = 64,138.60/x
  3. Step 3: Cross multiply
    108,534.70x = 162,802.05 × 64,138.60
  4. Step 4: Simplify right side
    108,534.70x = 10,441,895,564.13
  5. Step 5: Solve for x
    x = 10,441,895,564.13/108,534.70
  6. Step 6: Final answer
    x = 96,207.90

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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.