Home / 88,901.10-133,351.65-82,142.70

Finding the Fourth Proportional to 88,901.10, 133,351.65 and 82,142.70

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Solution

The fourth proportional to 88,901.10, 133,351.65 and 82,142.70 is: 123,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,901.10 : 133,351.65 = 82,142.70 : x
  2. Step 2: Convert to fraction form
    88,901.10/133,351.65 = 82,142.70/x
  3. Step 3: Cross multiply
    88,901.10x = 133,351.65 × 82,142.70
  4. Step 4: Simplify right side
    88,901.10x = 10,953,864,580.46
  5. Step 5: Solve for x
    x = 10,953,864,580.46/88,901.10
  6. Step 6: Final answer
    x = 123,214.05

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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.