Home / 136,415.10-204,525.45-52,142.70

Finding the Fourth Proportional to 136,415.10, 204,525.45 and 52,142.70

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Solution

The fourth proportional to 136,415.10, 204,525.45 and 52,142.70 is: 78,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,415.10 : 204,525.45 = 52,142.70 : x
  2. Step 2: Convert to fraction form
    136,415.10/204,525.45 = 52,142.70/x
  3. Step 3: Cross multiply
    136,415.10x = 204,525.45 × 52,142.70
  4. Step 4: Simplify right side
    136,415.10x = 10,664,509,181.72
  5. Step 5: Solve for x
    x = 10,664,509,181.72/136,415.10
  6. Step 6: Final answer
    x = 78,176.90

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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.