Home / 185,105.60-255,445.40-100,222.64

Finding the Fourth Proportional to 185,105.60, 255,445.40 and 100,222.64

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Solution

The fourth proportional to 185,105.60, 255,445.40 and 100,222.64 is: 138,307.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,105.60 : 255,445.40 = 100,222.64 : x
  2. Step 2: Convert to fraction form
    185,105.60/255,445.40 = 100,222.64/x
  3. Step 3: Cross multiply
    185,105.60x = 255,445.40 × 100,222.64
  4. Step 4: Simplify right side
    185,105.60x = 25,601,412,363.86
  5. Step 5: Solve for x
    x = 25,601,412,363.86/185,105.60
  6. Step 6: Final answer
    x = 138,307.07

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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.