Home / 131,149.72-196,921.38-75,053.17

Finding the Fourth Proportional to 131,149.72, 196,921.38 and 75,053.17

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Solution

The fourth proportional to 131,149.72, 196,921.38 and 75,053.17 is: 112,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,149.72 : 196,921.38 = 75,053.17 : x
  2. Step 2: Convert to fraction form
    131,149.72/196,921.38 = 75,053.17/x
  3. Step 3: Cross multiply
    131,149.72x = 196,921.38 × 75,053.17
  4. Step 4: Simplify right side
    131,149.72x = 14,779,573,809.77
  5. Step 5: Solve for x
    x = 14,779,573,809.77/131,149.72
  6. Step 6: Final answer
    x = 112,692.38

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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.