Home / 154,607.43-213,375.96-86,642.76

Finding the Fourth Proportional to 154,607.43, 213,375.96 and 86,642.76

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Solution

The fourth proportional to 154,607.43, 213,375.96 and 86,642.76 is: 119,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,607.43 : 213,375.96 = 86,642.76 : x
  2. Step 2: Convert to fraction form
    154,607.43/213,375.96 = 86,642.76/x
  3. Step 3: Cross multiply
    154,607.43x = 213,375.96 × 86,642.76
  4. Step 4: Simplify right side
    154,607.43x = 18,487,482,092.05
  5. Step 5: Solve for x
    x = 18,487,482,092.05/154,607.43
  6. Step 6: Final answer
    x = 119,576.93

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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.