Home / 103,343.40-155,015.10-36,858.60

Finding the Fourth Proportional to 103,343.40, 155,015.10 and 36,858.60

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Solution

The fourth proportional to 103,343.40, 155,015.10 and 36,858.60 is: 55,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,343.40 : 155,015.10 = 36,858.60 : x
  2. Step 2: Convert to fraction form
    103,343.40/155,015.10 = 36,858.60/x
  3. Step 3: Cross multiply
    103,343.40x = 155,015.10 × 36,858.60
  4. Step 4: Simplify right side
    103,343.40x = 5,713,639,564.86
  5. Step 5: Solve for x
    x = 5,713,639,564.86/103,343.40
  6. Step 6: Final answer
    x = 55,287.90

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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.