Home / 99,986.18-137,983.12-59,692.42

Finding the Fourth Proportional to 99,986.18, 137,983.12 and 59,692.42

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Solution

The fourth proportional to 99,986.18, 137,983.12 and 59,692.42 is: 82,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,986.18 : 137,983.12 = 59,692.42 : x
  2. Step 2: Convert to fraction form
    99,986.18/137,983.12 = 59,692.42/x
  3. Step 3: Cross multiply
    99,986.18x = 137,983.12 × 59,692.42
  4. Step 4: Simplify right side
    99,986.18x = 8,236,545,857.76
  5. Step 5: Solve for x
    x = 8,236,545,857.76/99,986.18
  6. Step 6: Final answer
    x = 82,376.84

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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.