Home / 103,438.90-155,187.15-50,850.10

Finding the Fourth Proportional to 103,438.90, 155,187.15 and 50,850.10

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Solution

The fourth proportional to 103,438.90, 155,187.15 and 50,850.10 is: 76,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,438.90 : 155,187.15 = 50,850.10 : x
  2. Step 2: Convert to fraction form
    103,438.90/155,187.15 = 50,850.10/x
  3. Step 3: Cross multiply
    103,438.90x = 155,187.15 × 50,850.10
  4. Step 4: Simplify right side
    103,438.90x = 7,891,282,096.22
  5. Step 5: Solve for x
    x = 7,891,282,096.22/103,438.90
  6. Step 6: Final answer
    x = 76,289.31

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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.