Home / 185,913.69-256,560.20-105,356.56

Finding the Fourth Proportional to 185,913.69, 256,560.20 and 105,356.56

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Solution

The fourth proportional to 185,913.69, 256,560.20 and 105,356.56 is: 145,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,913.69 : 256,560.20 = 105,356.56 : x
  2. Step 2: Convert to fraction form
    185,913.69/256,560.20 = 105,356.56/x
  3. Step 3: Cross multiply
    185,913.69x = 256,560.20 × 105,356.56
  4. Step 4: Simplify right side
    185,913.69x = 27,030,300,104.91
  5. Step 5: Solve for x
    x = 27,030,300,104.91/185,913.69
  6. Step 6: Final answer
    x = 145,391.66

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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.