Home / 154,530.54-213,234.48-86,538.06

Finding the Fourth Proportional to 154,530.54, 213,234.48 and 86,538.06

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Solution

The fourth proportional to 154,530.54, 213,234.48 and 86,538.06 is: 119,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,530.54 : 213,234.48 = 86,538.06 : x
  2. Step 2: Convert to fraction form
    154,530.54/213,234.48 = 86,538.06/x
  3. Step 3: Cross multiply
    154,530.54x = 213,234.48 × 86,538.06
  4. Step 4: Simplify right side
    154,530.54x = 18,452,898,224.31
  5. Step 5: Solve for x
    x = 18,452,898,224.31/154,530.54
  6. Step 6: Final answer
    x = 119,412.63

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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.