Home / 88,977.40-133,466.10-81,719.80

Finding the Fourth Proportional to 88,977.40, 133,466.10 and 81,719.80

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Solution

The fourth proportional to 88,977.40, 133,466.10 and 81,719.80 is: 122,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,977.40 : 133,466.10 = 81,719.80 : x
  2. Step 2: Convert to fraction form
    88,977.40/133,466.10 = 81,719.80/x
  3. Step 3: Cross multiply
    88,977.40x = 133,466.10 × 81,719.80
  4. Step 4: Simplify right side
    88,977.40x = 10,906,822,998.78
  5. Step 5: Solve for x
    x = 10,906,822,998.78/88,977.40
  6. Step 6: Final answer
    x = 122,579.70

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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.