Home / 136,912.69-205,388.51-42,150.79

Finding the Fourth Proportional to 136,912.69, 205,388.51 and 42,150.79

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Solution

The fourth proportional to 136,912.69, 205,388.51 and 42,150.79 is: 63,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,912.69 : 205,388.51 = 42,150.79 : x
  2. Step 2: Convert to fraction form
    136,912.69/205,388.51 = 42,150.79/x
  3. Step 3: Cross multiply
    136,912.69x = 205,388.51 × 42,150.79
  4. Step 4: Simplify right side
    136,912.69x = 8,657,287,229.20
  5. Step 5: Solve for x
    x = 8,657,287,229.20/136,912.69
  6. Step 6: Final answer
    x = 63,232.18

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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.