Home / 185,089.78-255,423.96-100,206.82

Finding the Fourth Proportional to 185,089.78, 255,423.96 and 100,206.82

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Solution

The fourth proportional to 185,089.78, 255,423.96 and 100,206.82 is: 138,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,089.78 : 255,423.96 = 100,206.82 : x
  2. Step 2: Convert to fraction form
    185,089.78/255,423.96 = 100,206.82/x
  3. Step 3: Cross multiply
    185,089.78x = 255,423.96 × 100,206.82
  4. Step 4: Simplify right side
    185,089.78x = 25,595,222,783.41
  5. Step 5: Solve for x
    x = 25,595,222,783.41/185,089.78
  6. Step 6: Final answer
    x = 138,285.45

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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.