Home / 185,015.32-255,320.70-100,132.44

Finding the Fourth Proportional to 185,015.32, 255,320.70 and 100,132.44

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Solution

The fourth proportional to 185,015.32, 255,320.70 and 100,132.44 is: 138,182.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,015.32 : 255,320.70 = 100,132.44 : x
  2. Step 2: Convert to fraction form
    185,015.32/255,320.70 = 100,132.44/x
  3. Step 3: Cross multiply
    185,015.32x = 255,320.70 × 100,132.44
  4. Step 4: Simplify right side
    185,015.32x = 25,565,884,673.51
  5. Step 5: Solve for x
    x = 25,565,884,673.51/185,015.32
  6. Step 6: Final answer
    x = 138,182.53

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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.