Home / 185,799.12-256,403.52-100,917.60

Finding the Fourth Proportional to 185,799.12, 256,403.52 and 100,917.60

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Solution

The fourth proportional to 185,799.12, 256,403.52 and 100,917.60 is: 139,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,799.12 : 256,403.52 = 100,917.60 : x
  2. Step 2: Convert to fraction form
    185,799.12/256,403.52 = 100,917.60/x
  3. Step 3: Cross multiply
    185,799.12x = 256,403.52 × 100,917.60
  4. Step 4: Simplify right side
    185,799.12x = 25,875,627,869.95
  5. Step 5: Solve for x
    x = 25,875,627,869.95/185,799.12
  6. Step 6: Final answer
    x = 139,266.69

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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.