Home / 135,658.31-203,459.73-51,389.42

Finding the Fourth Proportional to 135,658.31, 203,459.73 and 51,389.42

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Solution

The fourth proportional to 135,658.31, 203,459.73 and 51,389.42 is: 77,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,658.31 : 203,459.73 = 51,389.42 : x
  2. Step 2: Convert to fraction form
    135,658.31/203,459.73 = 51,389.42/x
  3. Step 3: Cross multiply
    135,658.31x = 203,459.73 × 51,389.42
  4. Step 4: Simplify right side
    135,658.31x = 10,455,676,500.76
  5. Step 5: Solve for x
    x = 10,455,676,500.76/135,658.31
  6. Step 6: Final answer
    x = 77,073.62

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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.