Home / 144,738.18-199,749.77-91,069.20

Finding the Fourth Proportional to 144,738.18, 199,749.77 and 91,069.20

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Solution

The fourth proportional to 144,738.18, 199,749.77 and 91,069.20 is: 125,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,738.18 : 199,749.77 = 91,069.20 : x
  2. Step 2: Convert to fraction form
    144,738.18/199,749.77 = 91,069.20/x
  3. Step 3: Cross multiply
    144,738.18x = 199,749.77 × 91,069.20
  4. Step 4: Simplify right side
    144,738.18x = 18,191,052,901.57
  5. Step 5: Solve for x
    x = 18,191,052,901.57/144,738.18
  6. Step 6: Final answer
    x = 125,682.47

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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.