Home / 88,975.40-133,463.10-81,717.80

Finding the Fourth Proportional to 88,975.40, 133,463.10 and 81,717.80

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Solution

The fourth proportional to 88,975.40, 133,463.10 and 81,717.80 is: 122,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,975.40 : 133,463.10 = 81,717.80 : x
  2. Step 2: Convert to fraction form
    88,975.40/133,463.10 = 81,717.80/x
  3. Step 3: Cross multiply
    88,975.40x = 133,463.10 × 81,717.80
  4. Step 4: Simplify right side
    88,975.40x = 10,906,310,913.18
  5. Step 5: Solve for x
    x = 10,906,310,913.18/88,975.40
  6. Step 6: Final answer
    x = 122,576.70

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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.