Home / 131,148.72-196,919.88-75,052.17

Finding the Fourth Proportional to 131,148.72, 196,919.88 and 75,052.17

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Solution

The fourth proportional to 131,148.72, 196,919.88 and 75,052.17 is: 112,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,148.72 : 196,919.88 = 75,052.17 : x
  2. Step 2: Convert to fraction form
    131,148.72/196,919.88 = 75,052.17/x
  3. Step 3: Cross multiply
    131,148.72x = 196,919.88 × 75,052.17
  4. Step 4: Simplify right side
    131,148.72x = 14,779,264,310.14
  5. Step 5: Solve for x
    x = 14,779,264,310.14/131,148.72
  6. Step 6: Final answer
    x = 112,690.88

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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.