Home / 106,339.60-146,758.99-79,435.40

Finding the Fourth Proportional to 106,339.60, 146,758.99 and 79,435.40

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Solution

The fourth proportional to 106,339.60, 146,758.99 and 79,435.40 is: 109,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,339.60 : 146,758.99 = 79,435.40 : x
  2. Step 2: Convert to fraction form
    106,339.60/146,758.99 = 79,435.40/x
  3. Step 3: Cross multiply
    106,339.60x = 146,758.99 × 79,435.40
  4. Step 4: Simplify right side
    106,339.60x = 11,657,858,692.21
  5. Step 5: Solve for x
    x = 11,657,858,692.21/106,339.60
  6. Step 6: Final answer
    x = 109,628.58

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1.5x scale

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.