Home / 103,501.70-155,252.55-47,405.15

Finding the Fourth Proportional to 103,501.70, 155,252.55 and 47,405.15

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Solution

The fourth proportional to 103,501.70, 155,252.55 and 47,405.15 is: 71,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,501.70 : 155,252.55 = 47,405.15 : x
  2. Step 2: Convert to fraction form
    103,501.70/155,252.55 = 47,405.15/x
  3. Step 3: Cross multiply
    103,501.70x = 155,252.55 × 47,405.15
  4. Step 4: Simplify right side
    103,501.70x = 7,359,770,420.63
  5. Step 5: Solve for x
    x = 7,359,770,420.63/103,501.70
  6. Step 6: Final answer
    x = 71,107.73

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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.