Home / 279,677.39-419,235.19-89,998.36

Finding the Fourth Proportional to 279,677.39, 419,235.19 and 89,998.36

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Solution

The fourth proportional to 279,677.39, 419,235.19 and 89,998.36 is: 134,907.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,677.39 : 419,235.19 = 89,998.36 : x
  2. Step 2: Convert to fraction form
    279,677.39/419,235.19 = 89,998.36/x
  3. Step 3: Cross multiply
    279,677.39x = 419,235.19 × 89,998.36
  4. Step 4: Simplify right side
    279,677.39x = 37,730,478,281.20
  5. Step 5: Solve for x
    x = 37,730,478,281.20/279,677.39
  6. Step 6: Final answer
    x = 134,907.14

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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.