Home / 103,440.90-155,173.52-36,890.50

Finding the Fourth Proportional to 103,440.90, 155,173.52 and 36,890.50

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Solution

The fourth proportional to 103,440.90, 155,173.52 and 36,890.50 is: 55,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,440.90 : 155,173.52 = 36,890.50 : x
  2. Step 2: Convert to fraction form
    103,440.90/155,173.52 = 36,890.50/x
  3. Step 3: Cross multiply
    103,440.90x = 155,173.52 × 36,890.50
  4. Step 4: Simplify right side
    103,440.90x = 5,724,428,739.56
  5. Step 5: Solve for x
    x = 5,724,428,739.56/103,440.90
  6. Step 6: Final answer
    x = 55,340.09

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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.