Home / 106,906.40-147,520.79-63,877.32

Finding the Fourth Proportional to 106,906.40, 147,520.79 and 63,877.32

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Solution

The fourth proportional to 106,906.40, 147,520.79 and 63,877.32 is: 88,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,906.40 : 147,520.79 = 63,877.32 : x
  2. Step 2: Convert to fraction form
    106,906.40/147,520.79 = 63,877.32/x
  3. Step 3: Cross multiply
    106,906.40x = 147,520.79 × 63,877.32
  4. Step 4: Simplify right side
    106,906.40x = 9,423,232,390.10
  5. Step 5: Solve for x
    x = 9,423,232,390.10/106,906.40
  6. Step 6: Final answer
    x = 88,144.70

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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.