Home / 185,325.09-255,746.34-100,440.33

Finding the Fourth Proportional to 185,325.09, 255,746.34 and 100,440.33

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Solution

The fourth proportional to 185,325.09, 255,746.34 and 100,440.33 is: 138,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,325.09 : 255,746.34 = 100,440.33 : x
  2. Step 2: Convert to fraction form
    185,325.09/255,746.34 = 100,440.33/x
  3. Step 3: Cross multiply
    185,325.09x = 255,746.34 × 100,440.33
  4. Step 4: Simplify right side
    185,325.09x = 25,687,246,785.89
  5. Step 5: Solve for x
    x = 25,687,246,785.89/185,325.09
  6. Step 6: Final answer
    x = 138,606.42

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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.