Home / 154,204.95-231,122.34-79,360.41

Finding the Fourth Proportional to 154,204.95, 231,122.34 and 79,360.41

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Solution

The fourth proportional to 154,204.95, 231,122.34 and 79,360.41 is: 118,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,204.95 : 231,122.34 = 79,360.41 : x
  2. Step 2: Convert to fraction form
    154,204.95/231,122.34 = 79,360.41/x
  3. Step 3: Cross multiply
    154,204.95x = 231,122.34 × 79,360.41
  4. Step 4: Simplify right side
    154,204.95x = 18,341,963,662.56
  5. Step 5: Solve for x
    x = 18,341,963,662.56/154,204.95
  6. Step 6: Final answer
    x = 118,945.36

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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.