Home / 103,699.45-155,549.65-36,231.18

Finding the Fourth Proportional to 103,699.45, 155,549.65 and 36,231.18

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Solution

The fourth proportional to 103,699.45, 155,549.65 and 36,231.18 is: 54,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,699.45 : 155,549.65 = 36,231.18 : x
  2. Step 2: Convert to fraction form
    103,699.45/155,549.65 = 36,231.18/x
  3. Step 3: Cross multiply
    103,699.45x = 155,549.65 × 36,231.18
  4. Step 4: Simplify right side
    103,699.45x = 5,635,747,368.09
  5. Step 5: Solve for x
    x = 5,635,747,368.09/103,699.45
  6. Step 6: Final answer
    x = 54,346.94

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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.