Home / 99,339.32-149,005.64-43,179.38

Finding the Fourth Proportional to 99,339.32, 149,005.64 and 43,179.38

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Solution

The fourth proportional to 99,339.32, 149,005.64 and 43,179.38 is: 64,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,339.32 : 149,005.64 = 43,179.38 : x
  2. Step 2: Convert to fraction form
    99,339.32/149,005.64 = 43,179.38/x
  3. Step 3: Cross multiply
    99,339.32x = 149,005.64 × 43,179.38
  4. Step 4: Simplify right side
    99,339.32x = 6,433,971,151.70
  5. Step 5: Solve for x
    x = 6,433,971,151.70/99,339.32
  6. Step 6: Final answer
    x = 64,767.62

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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.