Home / 185,213.63-255,594.82-100,330.70

Finding the Fourth Proportional to 185,213.63, 255,594.82 and 100,330.70

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Solution

The fourth proportional to 185,213.63, 255,594.82 and 100,330.70 is: 138,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,213.63 : 255,594.82 = 100,330.70 : x
  2. Step 2: Convert to fraction form
    185,213.63/255,594.82 = 100,330.70/x
  3. Step 3: Cross multiply
    185,213.63x = 255,594.82 × 100,330.70
  4. Step 4: Simplify right side
    185,213.63x = 25,644,005,678.17
  5. Step 5: Solve for x
    x = 25,644,005,678.17/185,213.63
  6. Step 6: Final answer
    x = 138,456.36

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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.