Home / 91,180.08-136,768.70-46,781.21

Finding the Fourth Proportional to 91,180.08, 136,768.70 and 46,781.21

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Solution

The fourth proportional to 91,180.08, 136,768.70 and 46,781.21 is: 70,171.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,180.08 : 136,768.70 = 46,781.21 : x
  2. Step 2: Convert to fraction form
    91,180.08/136,768.70 = 46,781.21/x
  3. Step 3: Cross multiply
    91,180.08x = 136,768.70 × 46,781.21
  4. Step 4: Simplify right side
    91,180.08x = 6,398,205,735.00
  5. Step 5: Solve for x
    x = 6,398,205,735.00/91,180.08
  6. Step 6: Final answer
    x = 70,171.09

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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.