Home / 186,544.20-279,881.10-81,438.60

Finding the Fourth Proportional to 186,544.20, 279,881.10 and 81,438.60

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Solution

The fourth proportional to 186,544.20, 279,881.10 and 81,438.60 is: 122,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,544.20 : 279,881.10 = 81,438.60 : x
  2. Step 2: Convert to fraction form
    186,544.20/279,881.10 = 81,438.60/x
  3. Step 3: Cross multiply
    186,544.20x = 279,881.10 × 81,438.60
  4. Step 4: Simplify right side
    186,544.20x = 22,793,124,950.46
  5. Step 5: Solve for x
    x = 22,793,124,950.46/186,544.20
  6. Step 6: Final answer
    x = 122,186.19

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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.