Home / 103,350.80-155,039.16-50,715.92

Finding the Fourth Proportional to 103,350.80, 155,039.16 and 50,715.92

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Solution

The fourth proportional to 103,350.80, 155,039.16 and 50,715.92 is: 76,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,350.80 : 155,039.16 = 50,715.92 : x
  2. Step 2: Convert to fraction form
    103,350.80/155,039.16 = 50,715.92/x
  3. Step 3: Cross multiply
    103,350.80x = 155,039.16 × 50,715.92
  4. Step 4: Simplify right side
    103,350.80x = 7,862,953,635.43
  5. Step 5: Solve for x
    x = 7,862,953,635.43/103,350.80
  6. Step 6: Final answer
    x = 76,080.24

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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.