Home / 345,145.14-517,842.27-120,538.80

Finding the Fourth Proportional to 345,145.14, 517,842.27 and 120,538.80

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Solution

The fourth proportional to 345,145.14, 517,842.27 and 120,538.80 is: 180,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,145.14 : 517,842.27 = 120,538.80 : x
  2. Step 2: Convert to fraction form
    345,145.14/517,842.27 = 120,538.80/x
  3. Step 3: Cross multiply
    345,145.14x = 517,842.27 × 120,538.80
  4. Step 4: Simplify right side
    345,145.14x = 62,420,085,815.08
  5. Step 5: Solve for x
    x = 62,420,085,815.08/345,145.14
  6. Step 6: Final answer
    x = 180,851.70

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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.