Home / 99,618.72-149,497.38-43,429.92

Finding the Fourth Proportional to 99,618.72, 149,497.38 and 43,429.92

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Solution

The fourth proportional to 99,618.72, 149,497.38 and 43,429.92 is: 65,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.72 : 149,497.38 = 43,429.92 : x
  2. Step 2: Convert to fraction form
    99,618.72/149,497.38 = 43,429.92/x
  3. Step 3: Cross multiply
    99,618.72x = 149,497.38 × 43,429.92
  4. Step 4: Simplify right side
    99,618.72x = 6,492,659,253.61
  5. Step 5: Solve for x
    x = 6,492,659,253.61/99,618.72
  6. Step 6: Final answer
    x = 65,175.09

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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.