Home / 185,271.53-255,675.60-100,388.57

Finding the Fourth Proportional to 185,271.53, 255,675.60 and 100,388.57

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Solution

The fourth proportional to 185,271.53, 255,675.60 and 100,388.57 is: 138,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,271.53 : 255,675.60 = 100,388.57 : x
  2. Step 2: Convert to fraction form
    185,271.53/255,675.60 = 100,388.57/x
  3. Step 3: Cross multiply
    185,271.53x = 255,675.60 × 100,388.57
  4. Step 4: Simplify right side
    185,271.53x = 25,666,906,087.57
  5. Step 5: Solve for x
    x = 25,666,906,087.57/185,271.53
  6. Step 6: Final answer
    x = 138,536.70

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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.