Home / 133,084.62-183,612.69-87,785.10

Finding the Fourth Proportional to 133,084.62, 183,612.69 and 87,785.10

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Solution

The fourth proportional to 133,084.62, 183,612.69 and 87,785.10 is: 121,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,084.62 : 183,612.69 = 87,785.10 : x
  2. Step 2: Convert to fraction form
    133,084.62/183,612.69 = 87,785.10/x
  3. Step 3: Cross multiply
    133,084.62x = 183,612.69 × 87,785.10
  4. Step 4: Simplify right side
    133,084.62x = 16,118,458,352.92
  5. Step 5: Solve for x
    x = 16,118,458,352.92/133,084.62
  6. Step 6: Final answer
    x = 121,114.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.