Home / 99,222.08-136,922.54-58,934.78

Finding the Fourth Proportional to 99,222.08, 136,922.54 and 58,934.78

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Solution

The fourth proportional to 99,222.08, 136,922.54 and 58,934.78 is: 81,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,222.08 : 136,922.54 = 58,934.78 : x
  2. Step 2: Convert to fraction form
    99,222.08/136,922.54 = 58,934.78/x
  3. Step 3: Cross multiply
    99,222.08x = 136,922.54 × 58,934.78
  4. Step 4: Simplify right side
    99,222.08x = 8,069,498,792.65
  5. Step 5: Solve for x
    x = 8,069,498,792.65/99,222.08
  6. Step 6: Final answer
    x = 81,327.66

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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.