Home / 126,214.12-174,144.42-77,143.32

Finding the Fourth Proportional to 126,214.12, 174,144.42 and 77,143.32

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Solution

The fourth proportional to 126,214.12, 174,144.42 and 77,143.32 is: 106,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,214.12 : 174,144.42 = 77,143.32 : x
  2. Step 2: Convert to fraction form
    126,214.12/174,144.42 = 77,143.32/x
  3. Step 3: Cross multiply
    126,214.12x = 174,144.42 × 77,143.32
  4. Step 4: Simplify right side
    126,214.12x = 13,434,078,718.27
  5. Step 5: Solve for x
    x = 13,434,078,718.27/126,214.12
  6. Step 6: Final answer
    x = 106,438.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.