Home / 185,000.28-255,300.84-100,117.96

Finding the Fourth Proportional to 185,000.28, 255,300.84 and 100,117.96

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Solution

The fourth proportional to 185,000.28, 255,300.84 and 100,117.96 is: 138,163.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,000.28 : 255,300.84 = 100,117.96 : x
  2. Step 2: Convert to fraction form
    185,000.28/255,300.84 = 100,117.96/x
  3. Step 3: Cross multiply
    185,000.28x = 255,300.84 × 100,117.96
  4. Step 4: Simplify right side
    185,000.28x = 25,560,199,287.09
  5. Step 5: Solve for x
    x = 25,560,199,287.09/185,000.28
  6. Step 6: Final answer
    x = 138,163.03

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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.