Home / 103,520.79-155,313.98-36,959.45

Finding the Fourth Proportional to 103,520.79, 155,313.98 and 36,959.45

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Solution

The fourth proportional to 103,520.79, 155,313.98 and 36,959.45 is: 55,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520.79 : 155,313.98 = 36,959.45 : x
  2. Step 2: Convert to fraction form
    103,520.79/155,313.98 = 36,959.45/x
  3. Step 3: Cross multiply
    103,520.79x = 155,313.98 × 36,959.45
  4. Step 4: Simplify right side
    103,520.79x = 5,740,318,316.74
  5. Step 5: Solve for x
    x = 5,740,318,316.74/103,520.79
  6. Step 6: Final answer
    x = 55,450.87

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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.