Home / 186,211.71-256,977.97-105,642.63

Finding the Fourth Proportional to 186,211.71, 256,977.97 and 105,642.63

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Solution

The fourth proportional to 186,211.71, 256,977.97 and 105,642.63 is: 145,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,211.71 : 256,977.97 = 105,642.63 : x
  2. Step 2: Convert to fraction form
    186,211.71/256,977.97 = 105,642.63/x
  3. Step 3: Cross multiply
    186,211.71x = 256,977.97 × 105,642.63
  4. Step 4: Simplify right side
    186,211.71x = 27,147,828,338.75
  5. Step 5: Solve for x
    x = 27,147,828,338.75/186,211.71
  6. Step 6: Final answer
    x = 145,790.12

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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.