Home / 185,087.77-255,421.20-100,204.81

Finding the Fourth Proportional to 185,087.77, 255,421.20 and 100,204.81

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Solution

The fourth proportional to 185,087.77, 255,421.20 and 100,204.81 is: 138,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,087.77 : 255,421.20 = 100,204.81 : x
  2. Step 2: Convert to fraction form
    185,087.77/255,421.20 = 100,204.81/x
  3. Step 3: Cross multiply
    185,087.77x = 255,421.20 × 100,204.81
  4. Step 4: Simplify right side
    185,087.77x = 25,594,432,815.97
  5. Step 5: Solve for x
    x = 25,594,432,815.97/185,087.77
  6. Step 6: Final answer
    x = 138,282.68

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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.