Home / 99,811.16-137,767.20-57,383.36

Finding the Fourth Proportional to 99,811.16, 137,767.20 and 57,383.36

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Solution

The fourth proportional to 99,811.16, 137,767.20 and 57,383.36 is: 79,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.16 : 137,767.20 = 57,383.36 : x
  2. Step 2: Convert to fraction form
    99,811.16/137,767.20 = 57,383.36/x
  3. Step 3: Cross multiply
    99,811.16x = 137,767.20 × 57,383.36
  4. Step 4: Simplify right side
    99,811.16x = 7,905,544,833.79
  5. Step 5: Solve for x
    x = 7,905,544,833.79/99,811.16
  6. Step 6: Final answer
    x = 79,205.02

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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.