Home / 154,197.45-231,111.09-79,352.91

Finding the Fourth Proportional to 154,197.45, 231,111.09 and 79,352.91

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Solution

The fourth proportional to 154,197.45, 231,111.09 and 79,352.91 is: 118,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,197.45 : 231,111.09 = 79,352.91 : x
  2. Step 2: Convert to fraction form
    154,197.45/231,111.09 = 79,352.91/x
  3. Step 3: Cross multiply
    154,197.45x = 231,111.09 × 79,352.91
  4. Step 4: Simplify right side
    154,197.45x = 18,339,337,524.77
  5. Step 5: Solve for x
    x = 18,339,337,524.77/154,197.45
  6. Step 6: Final answer
    x = 118,934.12

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1.5x scale

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.