Home / 185,073.75-255,402.60-100,190.81

Finding the Fourth Proportional to 185,073.75, 255,402.60 and 100,190.81

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Solution

The fourth proportional to 185,073.75, 255,402.60 and 100,190.81 is: 138,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,073.75 : 255,402.60 = 100,190.81 : x
  2. Step 2: Convert to fraction form
    185,073.75/255,402.60 = 100,190.81/x
  3. Step 3: Cross multiply
    185,073.75x = 255,402.60 × 100,190.81
  4. Step 4: Simplify right side
    185,073.75x = 25,588,993,370.11
  5. Step 5: Solve for x
    x = 25,588,993,370.11/185,073.75
  6. Step 6: Final answer
    x = 138,263.76

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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.