Home / 154,271.06-231,620.75-79,444.70

Finding the Fourth Proportional to 154,271.06, 231,620.75 and 79,444.70

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Solution

The fourth proportional to 154,271.06, 231,620.75 and 79,444.70 is: 119,277.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,271.06 : 231,620.75 = 79,444.70 : x
  2. Step 2: Convert to fraction form
    154,271.06/231,620.75 = 79,444.70/x
  3. Step 3: Cross multiply
    154,271.06x = 231,620.75 × 79,444.70
  4. Step 4: Simplify right side
    154,271.06x = 18,401,040,997.53
  5. Step 5: Solve for x
    x = 18,401,040,997.53/154,271.06
  6. Step 6: Final answer
    x = 119,277.34

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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.