Home / 106,490.08-147,022.32-74,787.04

Finding the Fourth Proportional to 106,490.08, 147,022.32 and 74,787.04

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Solution

The fourth proportional to 106,490.08, 147,022.32 and 74,787.04 is: 103,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,490.08 : 147,022.32 = 74,787.04 : x
  2. Step 2: Convert to fraction form
    106,490.08/147,022.32 = 74,787.04/x
  3. Step 3: Cross multiply
    106,490.08x = 147,022.32 × 74,787.04
  4. Step 4: Simplify right side
    106,490.08x = 10,995,364,126.73
  5. Step 5: Solve for x
    x = 10,995,364,126.73/106,490.08
  6. Step 6: Final answer
    x = 103,252.47

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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.