Home / 99,951.28-149,926.94-40,814.80

Finding the Fourth Proportional to 99,951.28, 149,926.94 and 40,814.80

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Solution

The fourth proportional to 99,951.28, 149,926.94 and 40,814.80 is: 61,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,951.28 : 149,926.94 = 40,814.80 : x
  2. Step 2: Convert to fraction form
    99,951.28/149,926.94 = 40,814.80/x
  3. Step 3: Cross multiply
    99,951.28x = 149,926.94 × 40,814.80
  4. Step 4: Simplify right side
    99,951.28x = 6,119,238,070.71
  5. Step 5: Solve for x
    x = 6,119,238,070.71/99,951.28
  6. Step 6: Final answer
    x = 61,222.21

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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.