Home / 185,815.89-256,427.28-100,932.99

Finding the Fourth Proportional to 185,815.89, 256,427.28 and 100,932.99

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Solution

The fourth proportional to 185,815.89, 256,427.28 and 100,932.99 is: 139,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,815.89 : 256,427.28 = 100,932.99 : x
  2. Step 2: Convert to fraction form
    185,815.89/256,427.28 = 100,932.99/x
  3. Step 3: Cross multiply
    185,815.89x = 256,427.28 × 100,932.99
  4. Step 4: Simplify right side
    185,815.89x = 25,881,972,087.97
  5. Step 5: Solve for x
    x = 25,881,972,087.97/185,815.89
  6. Step 6: Final answer
    x = 139,288.26

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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.