Home / 145,087.68-200,349.12-91,462.56

Finding the Fourth Proportional to 145,087.68, 200,349.12 and 91,462.56

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Solution

The fourth proportional to 145,087.68, 200,349.12 and 91,462.56 is: 126,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,087.68 : 200,349.12 = 91,462.56 : x
  2. Step 2: Convert to fraction form
    145,087.68/200,349.12 = 91,462.56/x
  3. Step 3: Cross multiply
    145,087.68x = 200,349.12 × 91,462.56
  4. Step 4: Simplify right side
    145,087.68x = 18,324,443,408.95
  5. Step 5: Solve for x
    x = 18,324,443,408.95/145,087.68
  6. Step 6: Final answer
    x = 126,299.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.