Home / 186,342.42-257,155.66-105,772.43

Finding the Fourth Proportional to 186,342.42, 257,155.66 and 105,772.43

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Solution

The fourth proportional to 186,342.42, 257,155.66 and 105,772.43 is: 145,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,342.42 : 257,155.66 = 105,772.43 : x
  2. Step 2: Convert to fraction form
    186,342.42/257,155.66 = 105,772.43/x
  3. Step 3: Cross multiply
    186,342.42x = 257,155.66 × 105,772.43
  4. Step 4: Simplify right side
    186,342.42x = 27,199,979,821.56
  5. Step 5: Solve for x
    x = 27,199,979,821.56/186,342.42
  6. Step 6: Final answer
    x = 145,967.73

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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.