Home / 185,036.24-255,351.88-100,155.12

Finding the Fourth Proportional to 185,036.24, 255,351.88 and 100,155.12

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Solution

The fourth proportional to 185,036.24, 255,351.88 and 100,155.12 is: 138,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,036.24 : 255,351.88 = 100,155.12 : x
  2. Step 2: Convert to fraction form
    185,036.24/255,351.88 = 100,155.12/x
  3. Step 3: Cross multiply
    185,036.24x = 255,351.88 × 100,155.12
  4. Step 4: Simplify right side
    185,036.24x = 25,574,798,183.63
  5. Step 5: Solve for x
    x = 25,574,798,183.63/185,036.24
  6. Step 6: Final answer
    x = 138,215.08

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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.