Home / 103,723.10-155,239.05-95,428.70

Finding the Fourth Proportional to 103,723.10, 155,239.05 and 95,428.70

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Solution

The fourth proportional to 103,723.10, 155,239.05 and 95,428.70 is: 142,825.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,723.10 : 155,239.05 = 95,428.70 : x
  2. Step 2: Convert to fraction form
    103,723.10/155,239.05 = 95,428.70/x
  3. Step 3: Cross multiply
    103,723.10x = 155,239.05 × 95,428.70
  4. Step 4: Simplify right side
    103,723.10x = 14,814,260,730.74
  5. Step 5: Solve for x
    x = 14,814,260,730.74/103,723.10
  6. Step 6: Final answer
    x = 142,825.09

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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.