Home / 185,301.90-255,717.54-100,418.76

Finding the Fourth Proportional to 185,301.90, 255,717.54 and 100,418.76

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Solution

The fourth proportional to 185,301.90, 255,717.54 and 100,418.76 is: 138,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,301.90 : 255,717.54 = 100,418.76 : x
  2. Step 2: Convert to fraction form
    185,301.90/255,717.54 = 100,418.76/x
  3. Step 3: Cross multiply
    185,301.90x = 255,717.54 × 100,418.76
  4. Step 4: Simplify right side
    185,301.90x = 25,678,838,277.05
  5. Step 5: Solve for x
    x = 25,678,838,277.05/185,301.90
  6. Step 6: Final answer
    x = 138,578.39

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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.