Home / 152,911.58-229,442.54-68,731.20

Finding the Fourth Proportional to 152,911.58, 229,442.54 and 68,731.20

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Solution

The fourth proportional to 152,911.58, 229,442.54 and 68,731.20 is: 103,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,911.58 : 229,442.54 = 68,731.20 : x
  2. Step 2: Convert to fraction form
    152,911.58/229,442.54 = 68,731.20/x
  3. Step 3: Cross multiply
    152,911.58x = 229,442.54 × 68,731.20
  4. Step 4: Simplify right side
    152,911.58x = 15,769,861,105.25
  5. Step 5: Solve for x
    x = 15,769,861,105.25/152,911.58
  6. Step 6: Final answer
    x = 103,130.59

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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.