Home / 107,920.10-161,918.55-104,080.10

Finding the Fourth Proportional to 107,920.10, 161,918.55 and 104,080.10

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Solution

The fourth proportional to 107,920.10, 161,918.55 and 104,080.10 is: 156,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,920.10 : 161,918.55 = 104,080.10 : x
  2. Step 2: Convert to fraction form
    107,920.10/161,918.55 = 104,080.10/x
  3. Step 3: Cross multiply
    107,920.10x = 161,918.55 × 104,080.10
  4. Step 4: Simplify right side
    107,920.10x = 16,852,498,875.86
  5. Step 5: Solve for x
    x = 16,852,498,875.86/107,920.10
  6. Step 6: Final answer
    x = 156,157.18

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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.