Home / 185,239.49-255,630.75-100,356.56

Finding the Fourth Proportional to 185,239.49, 255,630.75 and 100,356.56

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Solution

The fourth proportional to 185,239.49, 255,630.75 and 100,356.56 is: 138,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,239.49 : 255,630.75 = 100,356.56 : x
  2. Step 2: Convert to fraction form
    185,239.49/255,630.75 = 100,356.56/x
  3. Step 3: Cross multiply
    185,239.49x = 255,630.75 × 100,356.56
  4. Step 4: Simplify right side
    185,239.49x = 25,654,221,422.07
  5. Step 5: Solve for x
    x = 25,654,221,422.07/185,239.49
  6. Step 6: Final answer
    x = 138,492.18

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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.