Home / 142,047.36-212,868-104,311.44

Finding the Fourth Proportional to 142,047.36, 212,868 and 104,311.44

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Solution

The fourth proportional to 142,047.36, 212,868 and 104,311.44 is: 156,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,047.36 : 212,868 = 104,311.44 : x
  2. Step 2: Convert to fraction form
    142,047.36/212,868 = 104,311.44/x
  3. Step 3: Cross multiply
    142,047.36x = 212,868 × 104,311.44
  4. Step 4: Simplify right side
    142,047.36x = 22,204,567,609.92
  5. Step 5: Solve for x
    x = 22,204,567,609.92/142,047.36
  6. Step 6: Final answer
    x = 156,318.06

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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.