Home / 108,007.20-161,792.10-61,205.40

Finding the Fourth Proportional to 108,007.20, 161,792.10 and 61,205.40

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Solution

The fourth proportional to 108,007.20, 161,792.10 and 61,205.40 is: 91,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,007.20 : 161,792.10 = 61,205.40 : x
  2. Step 2: Convert to fraction form
    108,007.20/161,792.10 = 61,205.40/x
  3. Step 3: Cross multiply
    108,007.20x = 161,792.10 × 61,205.40
  4. Step 4: Simplify right side
    108,007.20x = 9,902,550,197.34
  5. Step 5: Solve for x
    x = 9,902,550,197.34/108,007.20
  6. Step 6: Final answer
    x = 91,684.17

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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.