Home / 176,611.11-243,715.91-100,135.35

Finding the Fourth Proportional to 176,611.11, 243,715.91 and 100,135.35

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Solution

The fourth proportional to 176,611.11, 243,715.91 and 100,135.35 is: 138,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,611.11 : 243,715.91 = 100,135.35 : x
  2. Step 2: Convert to fraction form
    176,611.11/243,715.91 = 100,135.35/x
  3. Step 3: Cross multiply
    176,611.11x = 243,715.91 × 100,135.35
  4. Step 4: Simplify right side
    176,611.11x = 24,404,576,229.16
  5. Step 5: Solve for x
    x = 24,404,576,229.16/176,611.11
  6. Step 6: Final answer
    x = 138,182.57

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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.