Home / 203,632.12-281,013.56-112,989.86

Finding the Fourth Proportional to 203,632.12, 281,013.56 and 112,989.86

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Solution

The fourth proportional to 203,632.12, 281,013.56 and 112,989.86 is: 155,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,632.12 : 281,013.56 = 112,989.86 : x
  2. Step 2: Convert to fraction form
    203,632.12/281,013.56 = 112,989.86/x
  3. Step 3: Cross multiply
    203,632.12x = 281,013.56 × 112,989.86
  4. Step 4: Simplify right side
    203,632.12x = 31,751,682,802.50
  5. Step 5: Solve for x
    x = 31,751,682,802.50/203,632.12
  6. Step 6: Final answer
    x = 155,926.69

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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.