Home / 99,106.57-136,767.16-53,784.56

Finding the Fourth Proportional to 99,106.57, 136,767.16 and 53,784.56

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Solution

The fourth proportional to 99,106.57, 136,767.16 and 53,784.56 is: 74,222.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,106.57 : 136,767.16 = 53,784.56 : x
  2. Step 2: Convert to fraction form
    99,106.57/136,767.16 = 53,784.56/x
  3. Step 3: Cross multiply
    99,106.57x = 136,767.16 × 53,784.56
  4. Step 4: Simplify right side
    99,106.57x = 7,355,961,523.05
  5. Step 5: Solve for x
    x = 7,355,961,523.05/99,106.57
  6. Step 6: Final answer
    x = 74,222.74

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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.