Home / 186,127.68-279,222.88-86,247.36

Finding the Fourth Proportional to 186,127.68, 279,222.88 and 86,247.36

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Solution

The fourth proportional to 186,127.68, 279,222.88 and 86,247.36 is: 129,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,127.68 : 279,222.88 = 86,247.36 : x
  2. Step 2: Convert to fraction form
    186,127.68/279,222.88 = 86,247.36/x
  3. Step 3: Cross multiply
    186,127.68x = 279,222.88 × 86,247.36
  4. Step 4: Simplify right side
    186,127.68x = 24,082,236,251.60
  5. Step 5: Solve for x
    x = 24,082,236,251.60/186,127.68
  6. Step 6: Final answer
    x = 129,385.57

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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.