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Finding the Fourth Proportional to 88,698.70, 133,048.05 and 86,949.10

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Solution

The fourth proportional to 88,698.70, 133,048.05 and 86,949.10 is: 130,423.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,698.70 : 133,048.05 = 86,949.10 : x
  2. Step 2: Convert to fraction form
    88,698.70/133,048.05 = 86,949.10/x
  3. Step 3: Cross multiply
    88,698.70x = 133,048.05 × 86,949.10
  4. Step 4: Simplify right side
    88,698.70x = 11,568,408,204.26
  5. Step 5: Solve for x
    x = 11,568,408,204.26/88,698.70
  6. Step 6: Final answer
    x = 130,423.65

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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.