Home / 185,014.24-255,320.40-100,131.28

Finding the Fourth Proportional to 185,014.24, 255,320.40 and 100,131.28

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Solution

The fourth proportional to 185,014.24, 255,320.40 and 100,131.28 is: 138,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,014.24 : 255,320.40 = 100,131.28 : x
  2. Step 2: Convert to fraction form
    185,014.24/255,320.40 = 100,131.28/x
  3. Step 3: Cross multiply
    185,014.24x = 255,320.40 × 100,131.28
  4. Step 4: Simplify right side
    185,014.24x = 25,565,558,462.11
  5. Step 5: Solve for x
    x = 25,565,558,462.11/185,014.24
  6. Step 6: Final answer
    x = 138,181.57

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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.