Home / 99,816.30-137,760.39-57,373.92

Finding the Fourth Proportional to 99,816.30, 137,760.39 and 57,373.92

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Solution

The fourth proportional to 99,816.30, 137,760.39 and 57,373.92 is: 79,184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816.30 : 137,760.39 = 57,373.92 : x
  2. Step 2: Convert to fraction form
    99,816.30/137,760.39 = 57,373.92/x
  3. Step 3: Cross multiply
    99,816.30x = 137,760.39 × 57,373.92
  4. Step 4: Simplify right side
    99,816.30x = 7,903,853,595.03
  5. Step 5: Solve for x
    x = 7,903,853,595.03/99,816.30
  6. Step 6: Final answer
    x = 79,184.00

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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.