Home / 185,161.27-255,522.31-100,278.67

Finding the Fourth Proportional to 185,161.27, 255,522.31 and 100,278.67

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Solution

The fourth proportional to 185,161.27, 255,522.31 and 100,278.67 is: 138,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,161.27 : 255,522.31 = 100,278.67 : x
  2. Step 2: Convert to fraction form
    185,161.27/255,522.31 = 100,278.67/x
  3. Step 3: Cross multiply
    185,161.27x = 255,522.31 × 100,278.67
  4. Step 4: Simplify right side
    185,161.27x = 25,623,437,402.13
  5. Step 5: Solve for x
    x = 25,623,437,402.13/185,161.27
  6. Step 6: Final answer
    x = 138,384.43

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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.