Home / 203,719.15-281,119.09-113,070.70

Finding the Fourth Proportional to 203,719.15, 281,119.09 and 113,070.70

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Solution

The fourth proportional to 203,719.15, 281,119.09 and 113,070.70 is: 156,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,719.15 : 281,119.09 = 113,070.70 : x
  2. Step 2: Convert to fraction form
    203,719.15/281,119.09 = 113,070.70/x
  3. Step 3: Cross multiply
    203,719.15x = 281,119.09 × 113,070.70
  4. Step 4: Simplify right side
    203,719.15x = 31,786,330,318.71
  5. Step 5: Solve for x
    x = 31,786,330,318.71/203,719.15
  6. Step 6: Final answer
    x = 156,030.16

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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.