Home / 157,467.42-217,305.72-100,911.60

Finding the Fourth Proportional to 157,467.42, 217,305.72 and 100,911.60

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Solution

The fourth proportional to 157,467.42, 217,305.72 and 100,911.60 is: 139,258.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,467.42 : 217,305.72 = 100,911.60 : x
  2. Step 2: Convert to fraction form
    157,467.42/217,305.72 = 100,911.60/x
  3. Step 3: Cross multiply
    157,467.42x = 217,305.72 × 100,911.60
  4. Step 4: Simplify right side
    157,467.42x = 21,928,667,894.35
  5. Step 5: Solve for x
    x = 21,928,667,894.35/157,467.42
  6. Step 6: Final answer
    x = 139,258.44

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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.