Home / 135,738.40-203,440.14-98,426.56

Finding the Fourth Proportional to 135,738.40, 203,440.14 and 98,426.56

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Solution

The fourth proportional to 135,738.40, 203,440.14 and 98,426.56 is: 147,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,738.40 : 203,440.14 = 98,426.56 : x
  2. Step 2: Convert to fraction form
    135,738.40/203,440.14 = 98,426.56/x
  3. Step 3: Cross multiply
    135,738.40x = 203,440.14 × 98,426.56
  4. Step 4: Simplify right side
    135,738.40x = 20,023,913,146.12
  5. Step 5: Solve for x
    x = 20,023,913,146.12/135,738.40
  6. Step 6: Final answer
    x = 147,518.41

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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.