Home / 135,765.28-203,440.02-69,105.52

Finding the Fourth Proportional to 135,765.28, 203,440.02 and 69,105.52

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Solution

The fourth proportional to 135,765.28, 203,440.02 and 69,105.52 is: 103,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,765.28 : 203,440.02 = 69,105.52 : x
  2. Step 2: Convert to fraction form
    135,765.28/203,440.02 = 69,105.52/x
  3. Step 3: Cross multiply
    135,765.28x = 203,440.02 × 69,105.52
  4. Step 4: Simplify right side
    135,765.28x = 14,058,828,370.91
  5. Step 5: Solve for x
    x = 14,058,828,370.91/135,765.28
  6. Step 6: Final answer
    x = 103,552.46

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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.