Home / 99,121.20-136,725.02-58,806.42

Finding the Fourth Proportional to 99,121.20, 136,725.02 and 58,806.42

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Solution

The fourth proportional to 99,121.20, 136,725.02 and 58,806.42 is: 81,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,121.20 : 136,725.02 = 58,806.42 : x
  2. Step 2: Convert to fraction form
    99,121.20/136,725.02 = 58,806.42/x
  3. Step 3: Cross multiply
    99,121.20x = 136,725.02 × 58,806.42
  4. Step 4: Simplify right side
    99,121.20x = 8,040,308,950.63
  5. Step 5: Solve for x
    x = 8,040,308,950.63/99,121.20
  6. Step 6: Final answer
    x = 81,115.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.