Home / 185,667.62-256,221.09-100,784.68

Finding the Fourth Proportional to 185,667.62, 256,221.09 and 100,784.68

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Solution

The fourth proportional to 185,667.62, 256,221.09 and 100,784.68 is: 139,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,667.62 : 256,221.09 = 100,784.68 : x
  2. Step 2: Convert to fraction form
    185,667.62/256,221.09 = 100,784.68/x
  3. Step 3: Cross multiply
    185,667.62x = 256,221.09 × 100,784.68
  4. Step 4: Simplify right side
    185,667.62x = 25,823,159,924.35
  5. Step 5: Solve for x
    x = 25,823,159,924.35/185,667.62
  6. Step 6: Final answer
    x = 139,082.74

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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.