Home / 91,175.29-136,811.09-64,692.42

Finding the Fourth Proportional to 91,175.29, 136,811.09 and 64,692.42

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Solution

The fourth proportional to 91,175.29, 136,811.09 and 64,692.42 is: 97,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,175.29 : 136,811.09 = 64,692.42 : x
  2. Step 2: Convert to fraction form
    91,175.29/136,811.09 = 64,692.42/x
  3. Step 3: Cross multiply
    91,175.29x = 136,811.09 × 64,692.42
  4. Step 4: Simplify right side
    91,175.29x = 8,850,640,143.63
  5. Step 5: Solve for x
    x = 8,850,640,143.63/91,175.29
  6. Step 6: Final answer
    x = 97,072.80

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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.