Home / 185,716.20-256,285.80-105,141.64

Finding the Fourth Proportional to 185,716.20, 256,285.80 and 105,141.64

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Solution

The fourth proportional to 185,716.20, 256,285.80 and 105,141.64 is: 145,094.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,716.20 : 256,285.80 = 105,141.64 : x
  2. Step 2: Convert to fraction form
    185,716.20/256,285.80 = 105,141.64/x
  3. Step 3: Cross multiply
    185,716.20x = 256,285.80 × 105,141.64
  4. Step 4: Simplify right side
    185,716.20x = 26,946,309,320.71
  5. Step 5: Solve for x
    x = 26,946,309,320.71/185,716.20
  6. Step 6: Final answer
    x = 145,094.02

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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.