Home / 143,998.10-215,997.15-130,174.10

Finding the Fourth Proportional to 143,998.10, 215,997.15 and 130,174.10

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Solution

The fourth proportional to 143,998.10, 215,997.15 and 130,174.10 is: 195,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,998.10 : 215,997.15 = 130,174.10 : x
  2. Step 2: Convert to fraction form
    143,998.10/215,997.15 = 130,174.10/x
  3. Step 3: Cross multiply
    143,998.10x = 215,997.15 × 130,174.10
  4. Step 4: Simplify right side
    143,998.10x = 28,117,234,603.82
  5. Step 5: Solve for x
    x = 28,117,234,603.82/143,998.10
  6. Step 6: Final answer
    x = 195,261.15

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Similar ratio
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1.5x scale

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.