Home / 136,490.56-204,638.90-52,179.68

Finding the Fourth Proportional to 136,490.56, 204,638.90 and 52,179.68

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Solution

The fourth proportional to 136,490.56, 204,638.90 and 52,179.68 is: 78,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,490.56 : 204,638.90 = 52,179.68 : x
  2. Step 2: Convert to fraction form
    136,490.56/204,638.90 = 52,179.68/x
  3. Step 3: Cross multiply
    136,490.56x = 204,638.90 × 52,179.68
  4. Step 4: Simplify right side
    136,490.56x = 10,677,992,317.55
  5. Step 5: Solve for x
    x = 10,677,992,317.55/136,490.56
  6. Step 6: Final answer
    x = 78,232.46

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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.