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Finding the Fourth Proportional to 76,930.80, 115,223.40 and 76,930.80

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Solution

The fourth proportional to 76,930.80, 115,223.40 and 76,930.80 is: 115,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,930.80 : 115,223.40 = 76,930.80 : x
  2. Step 2: Convert to fraction form
    76,930.80/115,223.40 = 76,930.80/x
  3. Step 3: Cross multiply
    76,930.80x = 115,223.40 × 76,930.80
  4. Step 4: Simplify right side
    76,930.80x = 8,864,228,340.72
  5. Step 5: Solve for x
    x = 8,864,228,340.72/76,930.80
  6. Step 6: Final answer
    x = 115,223.40

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1.5x scale

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.