Home / 99,954.90-149,877.68-40,723.65

Finding the Fourth Proportional to 99,954.90, 149,877.68 and 40,723.65

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Solution

The fourth proportional to 99,954.90, 149,877.68 and 40,723.65 is: 61,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,954.90 : 149,877.68 = 40,723.65 : x
  2. Step 2: Convert to fraction form
    99,954.90/149,877.68 = 40,723.65/x
  3. Step 3: Cross multiply
    99,954.90x = 149,877.68 × 40,723.65
  4. Step 4: Simplify right side
    99,954.90x = 6,103,565,979.51
  5. Step 5: Solve for x
    x = 6,103,565,979.51/99,954.90
  6. Step 6: Final answer
    x = 61,063.20

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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.