Home / 185,919.20-256,567.78-105,362.08

Finding the Fourth Proportional to 185,919.20, 256,567.78 and 105,362.08

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Solution

The fourth proportional to 185,919.20, 256,567.78 and 105,362.08 is: 145,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,919.20 : 256,567.78 = 105,362.08 : x
  2. Step 2: Convert to fraction form
    185,919.20/256,567.78 = 105,362.08/x
  3. Step 3: Cross multiply
    185,919.20x = 256,567.78 × 105,362.08
  4. Step 4: Simplify right side
    185,919.20x = 27,032,514,961.78
  5. Step 5: Solve for x
    x = 27,032,514,961.78/185,919.20
  6. Step 6: Final answer
    x = 145,399.26

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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.