Home / 345,876.52-518,830.68-105,973.24

Finding the Fourth Proportional to 345,876.52, 518,830.68 and 105,973.24

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Solution

The fourth proportional to 345,876.52, 518,830.68 and 105,973.24 is: 158,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,876.52 : 518,830.68 = 105,973.24 : x
  2. Step 2: Convert to fraction form
    345,876.52/518,830.68 = 105,973.24/x
  3. Step 3: Cross multiply
    345,876.52x = 518,830.68 × 105,973.24
  4. Step 4: Simplify right side
    345,876.52x = 54,982,168,171.00
  5. Step 5: Solve for x
    x = 54,982,168,171.00/345,876.52
  6. Step 6: Final answer
    x = 158,964.73

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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.