Home / 103,439.91-155,172.02-36,889.50

Finding the Fourth Proportional to 103,439.91, 155,172.02 and 36,889.50

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Solution

The fourth proportional to 103,439.91, 155,172.02 and 36,889.50 is: 55,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439.91 : 155,172.02 = 36,889.50 : x
  2. Step 2: Convert to fraction form
    103,439.91/155,172.02 = 36,889.50/x
  3. Step 3: Cross multiply
    103,439.91x = 155,172.02 × 36,889.50
  4. Step 4: Simplify right side
    103,439.91x = 5,724,218,231.79
  5. Step 5: Solve for x
    x = 5,724,218,231.79/103,439.91
  6. Step 6: Final answer
    x = 55,338.58

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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.