Home / 99,106.66-136,767.29-53,784.65

Finding the Fourth Proportional to 99,106.66, 136,767.29 and 53,784.65

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Solution

The fourth proportional to 99,106.66, 136,767.29 and 53,784.65 is: 74,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,106.66 : 136,767.29 = 53,784.65 : x
  2. Step 2: Convert to fraction form
    99,106.66/136,767.29 = 53,784.65/x
  3. Step 3: Cross multiply
    99,106.66x = 136,767.29 × 53,784.65
  4. Step 4: Simplify right side
    99,106.66x = 7,355,981,269.75
  5. Step 5: Solve for x
    x = 7,355,981,269.75/99,106.66
  6. Step 6: Final answer
    x = 74,222.87

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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.