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Finding the Fourth Proportional to 185,009.97, 255,313.80 and 100,127.07

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Solution

The fourth proportional to 185,009.97, 255,313.80 and 100,127.07 is: 138,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,009.97 : 255,313.80 = 100,127.07 : x
  2. Step 2: Convert to fraction form
    185,009.97/255,313.80 = 100,127.07/x
  3. Step 3: Cross multiply
    185,009.97x = 255,313.80 × 100,127.07
  4. Step 4: Simplify right side
    185,009.97x = 25,563,822,724.57
  5. Step 5: Solve for x
    x = 25,563,822,724.57/185,009.97
  6. Step 6: Final answer
    x = 138,175.38

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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.