Home / 135,709.10-203,465.23-91,225.52

Finding the Fourth Proportional to 135,709.10, 203,465.23 and 91,225.52

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Solution

The fourth proportional to 135,709.10, 203,465.23 and 91,225.52 is: 136,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,709.10 : 203,465.23 = 91,225.52 : x
  2. Step 2: Convert to fraction form
    135,709.10/203,465.23 = 91,225.52/x
  3. Step 3: Cross multiply
    135,709.10x = 203,465.23 × 91,225.52
  4. Step 4: Simplify right side
    135,709.10x = 18,561,221,408.67
  5. Step 5: Solve for x
    x = 18,561,221,408.67/135,709.10
  6. Step 6: Final answer
    x = 136,772.12

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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.