Home / 136,123.21-204,184.82-42,636.25

Finding the Fourth Proportional to 136,123.21, 204,184.82 and 42,636.25

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Solution

The fourth proportional to 136,123.21, 204,184.82 and 42,636.25 is: 63,954.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,123.21 : 204,184.82 = 42,636.25 : x
  2. Step 2: Convert to fraction form
    136,123.21/204,184.82 = 42,636.25/x
  3. Step 3: Cross multiply
    136,123.21x = 204,184.82 × 42,636.25
  4. Step 4: Simplify right side
    136,123.21x = 8,705,675,031.73
  5. Step 5: Solve for x
    x = 8,705,675,031.73/136,123.21
  6. Step 6: Final answer
    x = 63,954.38

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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.