Home / 185,438.52-255,904.92-100,555.44

Finding the Fourth Proportional to 185,438.52, 255,904.92 and 100,555.44

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Solution

The fourth proportional to 185,438.52, 255,904.92 and 100,555.44 is: 138,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,438.52 : 255,904.92 = 100,555.44 : x
  2. Step 2: Convert to fraction form
    185,438.52/255,904.92 = 100,555.44/x
  3. Step 3: Cross multiply
    185,438.52x = 255,904.92 × 100,555.44
  4. Step 4: Simplify right side
    185,438.52x = 25,732,631,828.76
  5. Step 5: Solve for x
    x = 25,732,631,828.76/185,438.52
  6. Step 6: Final answer
    x = 138,766.38

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1.5x scale

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.