Home / 120,988.14-181,519.10-61,865.34

Finding the Fourth Proportional to 120,988.14, 181,519.10 and 61,865.34

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Solution

The fourth proportional to 120,988.14, 181,519.10 and 61,865.34 is: 92,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,988.14 : 181,519.10 = 61,865.34 : x
  2. Step 2: Convert to fraction form
    120,988.14/181,519.10 = 61,865.34/x
  3. Step 3: Cross multiply
    120,988.14x = 181,519.10 × 61,865.34
  4. Step 4: Simplify right side
    120,988.14x = 11,229,740,837.99
  5. Step 5: Solve for x
    x = 11,229,740,837.99/120,988.14
  6. Step 6: Final answer
    x = 92,816.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.