Home / 185,274.36-255,671.78-100,389.60

Finding the Fourth Proportional to 185,274.36, 255,671.78 and 100,389.60

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Solution

The fourth proportional to 185,274.36, 255,671.78 and 100,389.60 is: 138,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,274.36 : 255,671.78 = 100,389.60 : x
  2. Step 2: Convert to fraction form
    185,274.36/255,671.78 = 100,389.60/x
  3. Step 3: Cross multiply
    185,274.36x = 255,671.78 × 100,389.60
  4. Step 4: Simplify right side
    185,274.36x = 25,666,787,223.54
  5. Step 5: Solve for x
    x = 25,666,787,223.54/185,274.36
  6. Step 6: Final answer
    x = 138,533.94

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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.