Home / 185,943.12-256,544.52-105,357.84

Finding the Fourth Proportional to 185,943.12, 256,544.52 and 105,357.84

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Solution

The fourth proportional to 185,943.12, 256,544.52 and 105,357.84 is: 145,361.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,943.12 : 256,544.52 = 105,357.84 : x
  2. Step 2: Convert to fraction form
    185,943.12/256,544.52 = 105,357.84/x
  3. Step 3: Cross multiply
    185,943.12x = 256,544.52 × 105,357.84
  4. Step 4: Simplify right side
    185,943.12x = 27,028,976,491.04
  5. Step 5: Solve for x
    x = 27,028,976,491.04/185,943.12
  6. Step 6: Final answer
    x = 145,361.53

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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.