Home / 145,845.40-218,768.10-136,003.90

Finding the Fourth Proportional to 145,845.40, 218,768.10 and 136,003.90

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Solution

The fourth proportional to 145,845.40, 218,768.10 and 136,003.90 is: 204,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,845.40 : 218,768.10 = 136,003.90 : x
  2. Step 2: Convert to fraction form
    145,845.40/218,768.10 = 136,003.90/x
  3. Step 3: Cross multiply
    145,845.40x = 218,768.10 × 136,003.90
  4. Step 4: Simplify right side
    145,845.40x = 29,753,314,795.59
  5. Step 5: Solve for x
    x = 29,753,314,795.59/145,845.40
  6. Step 6: Final answer
    x = 204,005.85

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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.