Home / 88,731.90-133,097.85-82,316.70

Finding the Fourth Proportional to 88,731.90, 133,097.85 and 82,316.70

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Solution

The fourth proportional to 88,731.90, 133,097.85 and 82,316.70 is: 123,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,731.90 : 133,097.85 = 82,316.70 : x
  2. Step 2: Convert to fraction form
    88,731.90/133,097.85 = 82,316.70/x
  3. Step 3: Cross multiply
    88,731.90x = 133,097.85 × 82,316.70
  4. Step 4: Simplify right side
    88,731.90x = 10,956,175,789.10
  5. Step 5: Solve for x
    x = 10,956,175,789.10/88,731.90
  6. Step 6: Final answer
    x = 123,475.05

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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.