Home / 135,420.05-203,021.64-64,306.71

Finding the Fourth Proportional to 135,420.05, 203,021.64 and 64,306.71

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Solution

The fourth proportional to 135,420.05, 203,021.64 and 64,306.71 is: 96,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,420.05 : 203,021.64 = 64,306.71 : x
  2. Step 2: Convert to fraction form
    135,420.05/203,021.64 = 64,306.71/x
  3. Step 3: Cross multiply
    135,420.05x = 203,021.64 × 64,306.71
  4. Step 4: Simplify right side
    135,420.05x = 13,055,653,727.20
  5. Step 5: Solve for x
    x = 13,055,653,727.20/135,420.05
  6. Step 6: Final answer
    x = 96,408.57

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1.5x scale

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.