Home / 111,778.20-154,148.46-73,470.06

Finding the Fourth Proportional to 111,778.20, 154,148.46 and 73,470.06

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Solution

The fourth proportional to 111,778.20, 154,148.46 and 73,470.06 is: 101,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,778.20 : 154,148.46 = 73,470.06 : x
  2. Step 2: Convert to fraction form
    111,778.20/154,148.46 = 73,470.06/x
  3. Step 3: Cross multiply
    111,778.20x = 154,148.46 × 73,470.06
  4. Step 4: Simplify right side
    111,778.20x = 11,325,296,605.11
  5. Step 5: Solve for x
    x = 11,325,296,605.11/111,778.20
  6. Step 6: Final answer
    x = 101,319.37

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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.