Home / 185,817.10-256,432.34-105,243.42

Finding the Fourth Proportional to 185,817.10, 256,432.34 and 105,243.42

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Solution

The fourth proportional to 185,817.10, 256,432.34 and 105,243.42 is: 145,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,817.10 : 256,432.34 = 105,243.42 : x
  2. Step 2: Convert to fraction form
    185,817.10/256,432.34 = 105,243.42/x
  3. Step 3: Cross multiply
    185,817.10x = 256,432.34 × 105,243.42
  4. Step 4: Simplify right side
    185,817.10x = 26,987,816,460.20
  5. Step 5: Solve for x
    x = 26,987,816,460.20/185,817.10
  6. Step 6: Final answer
    x = 145,238.61

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1.5x scale

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.