Home / 185,163.65-255,525.59-100,281.05

Finding the Fourth Proportional to 185,163.65, 255,525.59 and 100,281.05

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Solution

The fourth proportional to 185,163.65, 255,525.59 and 100,281.05 is: 138,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,163.65 : 255,525.59 = 100,281.05 : x
  2. Step 2: Convert to fraction form
    185,163.65/255,525.59 = 100,281.05/x
  3. Step 3: Cross multiply
    185,163.65x = 255,525.59 × 100,281.05
  4. Step 4: Simplify right side
    185,163.65x = 25,624,372,688.04
  5. Step 5: Solve for x
    x = 25,624,372,688.04/185,163.65
  6. Step 6: Final answer
    x = 138,387.71

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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.