Home / 185,034.24-255,349.12-100,153.12

Finding the Fourth Proportional to 185,034.24, 255,349.12 and 100,153.12

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Solution

The fourth proportional to 185,034.24, 255,349.12 and 100,153.12 is: 138,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,034.24 : 255,349.12 = 100,153.12 : x
  2. Step 2: Convert to fraction form
    185,034.24/255,349.12 = 100,153.12/x
  3. Step 3: Cross multiply
    185,034.24x = 255,349.12 × 100,153.12
  4. Step 4: Simplify right side
    185,034.24x = 25,574,011,057.25
  5. Step 5: Solve for x
    x = 25,574,011,057.25/185,034.24
  6. Step 6: Final answer
    x = 138,212.32

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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.