Home / 103,069.62-142,247.88-57,759.84

Finding the Fourth Proportional to 103,069.62, 142,247.88 and 57,759.84

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Solution

The fourth proportional to 103,069.62, 142,247.88 and 57,759.84 is: 79,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,069.62 : 142,247.88 = 57,759.84 : x
  2. Step 2: Convert to fraction form
    103,069.62/142,247.88 = 57,759.84/x
  3. Step 3: Cross multiply
    103,069.62x = 142,247.88 × 57,759.84
  4. Step 4: Simplify right side
    103,069.62x = 8,216,214,789.14
  5. Step 5: Solve for x
    x = 8,216,214,789.14/103,069.62
  6. Step 6: Final answer
    x = 79,715.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.