Home / 111,351.12-167,036.40-28,245.12

Finding the Fourth Proportional to 111,351.12, 167,036.40 and 28,245.12

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Solution

The fourth proportional to 111,351.12, 167,036.40 and 28,245.12 is: 42,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,351.12 : 167,036.40 = 28,245.12 : x
  2. Step 2: Convert to fraction form
    111,351.12/167,036.40 = 28,245.12/x
  3. Step 3: Cross multiply
    111,351.12x = 167,036.40 × 28,245.12
  4. Step 4: Simplify right side
    111,351.12x = 4,717,963,162.37
  5. Step 5: Solve for x
    x = 4,717,963,162.37/111,351.12
  6. Step 6: Final answer
    x = 42,370.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.