Home / 106,845.60-160,138.80-47,618.40

Finding the Fourth Proportional to 106,845.60, 160,138.80 and 47,618.40

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Solution

The fourth proportional to 106,845.60, 160,138.80 and 47,618.40 is: 71,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,845.60 : 160,138.80 = 47,618.40 : x
  2. Step 2: Convert to fraction form
    106,845.60/160,138.80 = 47,618.40/x
  3. Step 3: Cross multiply
    106,845.60x = 160,138.80 × 47,618.40
  4. Step 4: Simplify right side
    106,845.60x = 7,625,553,433.92
  5. Step 5: Solve for x
    x = 7,625,553,433.92/106,845.60
  6. Step 6: Final answer
    x = 71,369.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.