Home / 154,789.74-213,583.38-86,795.88

Finding the Fourth Proportional to 154,789.74, 213,583.38 and 86,795.88

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Solution

The fourth proportional to 154,789.74, 213,583.38 and 86,795.88 is: 119,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,789.74 : 213,583.38 = 86,795.88 : x
  2. Step 2: Convert to fraction form
    154,789.74/213,583.38 = 86,795.88/x
  3. Step 3: Cross multiply
    154,789.74x = 213,583.38 × 86,795.88
  4. Step 4: Simplify right side
    154,789.74x = 18,538,157,420.47
  5. Step 5: Solve for x
    x = 18,538,157,420.47/154,789.74
  6. Step 6: Final answer
    x = 119,763.48

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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.