Home / 185,041.62-255,357.63-100,158.48

Finding the Fourth Proportional to 185,041.62, 255,357.63 and 100,158.48

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Solution

The fourth proportional to 185,041.62, 255,357.63 and 100,158.48 is: 138,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,041.62 : 255,357.63 = 100,158.48 : x
  2. Step 2: Convert to fraction form
    185,041.62/255,357.63 = 100,158.48/x
  3. Step 3: Cross multiply
    185,041.62x = 255,357.63 × 100,158.48
  4. Step 4: Simplify right side
    185,041.62x = 25,576,232,077.20
  5. Step 5: Solve for x
    x = 25,576,232,077.20/185,041.62
  6. Step 6: Final answer
    x = 138,218.81

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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.