Home / 185,791.16-256,387.57-100,906.40

Finding the Fourth Proportional to 185,791.16, 256,387.57 and 100,906.40

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Solution

The fourth proportional to 185,791.16, 256,387.57 and 100,906.40 is: 139,248.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,791.16 : 256,387.57 = 100,906.40 : x
  2. Step 2: Convert to fraction form
    185,791.16/256,387.57 = 100,906.40/x
  3. Step 3: Cross multiply
    185,791.16x = 256,387.57 × 100,906.40
  4. Step 4: Simplify right side
    185,791.16x = 25,871,146,693.45
  5. Step 5: Solve for x
    x = 25,871,146,693.45/185,791.16
  6. Step 6: Final answer
    x = 139,248.53

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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.