Home / 186,071.18-256,772.22-105,505.88

Finding the Fourth Proportional to 186,071.18, 256,772.22 and 105,505.88

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Solution

The fourth proportional to 186,071.18, 256,772.22 and 105,505.88 is: 145,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,071.18 : 256,772.22 = 105,505.88 : x
  2. Step 2: Convert to fraction form
    186,071.18/256,772.22 = 105,505.88/x
  3. Step 3: Cross multiply
    186,071.18x = 256,772.22 × 105,505.88
  4. Step 4: Simplify right side
    186,071.18x = 27,090,978,709.69
  5. Step 5: Solve for x
    x = 27,090,978,709.69/186,071.18
  6. Step 6: Final answer
    x = 145,594.71

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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.