Home / 126,296.13-189,448.28-66,309.42

Finding the Fourth Proportional to 126,296.13, 189,448.28 and 66,309.42

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Solution

The fourth proportional to 126,296.13, 189,448.28 and 66,309.42 is: 99,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,296.13 : 189,448.28 = 66,309.42 : x
  2. Step 2: Convert to fraction form
    126,296.13/189,448.28 = 66,309.42/x
  3. Step 3: Cross multiply
    126,296.13x = 189,448.28 × 66,309.42
  4. Step 4: Simplify right side
    126,296.13x = 12,562,205,566.80
  5. Step 5: Solve for x
    x = 12,562,205,566.80/126,296.13
  6. Step 6: Final answer
    x = 99,466.27

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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.