Home / 185,721.40-256,296.24-100,838.44

Finding the Fourth Proportional to 185,721.40, 256,296.24 and 100,838.44

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Solution

The fourth proportional to 185,721.40, 256,296.24 and 100,838.44 is: 139,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,721.40 : 256,296.24 = 100,838.44 : x
  2. Step 2: Convert to fraction form
    185,721.40/256,296.24 = 100,838.44/x
  3. Step 3: Cross multiply
    185,721.40x = 256,296.24 × 100,838.44
  4. Step 4: Simplify right side
    185,721.40x = 25,844,513,019.47
  5. Step 5: Solve for x
    x = 25,844,513,019.47/185,721.40
  6. Step 6: Final answer
    x = 139,157.43

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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.