Home / 129,622.40-194,455.20-50,739.20

Finding the Fourth Proportional to 129,622.40, 194,455.20 and 50,739.20

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Solution

The fourth proportional to 129,622.40, 194,455.20 and 50,739.20 is: 76,117.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,622.40 : 194,455.20 = 50,739.20 : x
  2. Step 2: Convert to fraction form
    129,622.40/194,455.20 = 50,739.20/x
  3. Step 3: Cross multiply
    129,622.40x = 194,455.20 × 50,739.20
  4. Step 4: Simplify right side
    129,622.40x = 9,866,501,283.84
  5. Step 5: Solve for x
    x = 9,866,501,283.84/129,622.40
  6. Step 6: Final answer
    x = 76,117.26

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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.