Home / 185,528.78-256,030.21-100,645.85

Finding the Fourth Proportional to 185,528.78, 256,030.21 and 100,645.85

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Solution

The fourth proportional to 185,528.78, 256,030.21 and 100,645.85 is: 138,891.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,528.78 : 256,030.21 = 100,645.85 : x
  2. Step 2: Convert to fraction form
    185,528.78/256,030.21 = 100,645.85/x
  3. Step 3: Cross multiply
    185,528.78x = 256,030.21 × 100,645.85
  4. Step 4: Simplify right side
    185,528.78x = 25,768,378,111.13
  5. Step 5: Solve for x
    x = 25,768,378,111.13/185,528.78
  6. Step 6: Final answer
    x = 138,891.54

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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.