Home / 145,839.30-218,758.95-122,511.30

Finding the Fourth Proportional to 145,839.30, 218,758.95 and 122,511.30

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Solution

The fourth proportional to 145,839.30, 218,758.95 and 122,511.30 is: 183,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,839.30 : 218,758.95 = 122,511.30 : x
  2. Step 2: Convert to fraction form
    145,839.30/218,758.95 = 122,511.30/x
  3. Step 3: Cross multiply
    145,839.30x = 218,758.95 × 122,511.30
  4. Step 4: Simplify right side
    145,839.30x = 26,800,443,351.14
  5. Step 5: Solve for x
    x = 26,800,443,351.14/145,839.30
  6. Step 6: Final answer
    x = 183,766.95

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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.