Home / 185,749.20-256,336.88-105,174.57

Finding the Fourth Proportional to 185,749.20, 256,336.88 and 105,174.57

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Solution

The fourth proportional to 185,749.20, 256,336.88 and 105,174.57 is: 145,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,749.20 : 256,336.88 = 105,174.57 : x
  2. Step 2: Convert to fraction form
    185,749.20/256,336.88 = 105,174.57/x
  3. Step 3: Cross multiply
    185,749.20x = 256,336.88 × 105,174.57
  4. Step 4: Simplify right side
    185,749.20x = 26,960,121,129.14
  5. Step 5: Solve for x
    x = 26,960,121,129.14/185,749.20
  6. Step 6: Final answer
    x = 145,142.60

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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.