Home / 154,141.10-212,716.19-90,479.96

Finding the Fourth Proportional to 154,141.10, 212,716.19 and 90,479.96

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Solution

The fourth proportional to 154,141.10, 212,716.19 and 90,479.96 is: 124,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,141.10 : 212,716.19 = 90,479.96 : x
  2. Step 2: Convert to fraction form
    154,141.10/212,716.19 = 90,479.96/x
  3. Step 3: Cross multiply
    154,141.10x = 212,716.19 × 90,479.96
  4. Step 4: Simplify right side
    154,141.10x = 19,246,552,362.55
  5. Step 5: Solve for x
    x = 19,246,552,362.55/154,141.10
  6. Step 6: Final answer
    x = 124,863.21

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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.