Home / 133,011.32-183,755.53-87,179.71

Finding the Fourth Proportional to 133,011.32, 183,755.53 and 87,179.71

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Solution

The fourth proportional to 133,011.32, 183,755.53 and 87,179.71 is: 120,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,011.32 : 183,755.53 = 87,179.71 : x
  2. Step 2: Convert to fraction form
    133,011.32/183,755.53 = 87,179.71/x
  3. Step 3: Cross multiply
    133,011.32x = 183,755.53 × 87,179.71
  4. Step 4: Simplify right side
    133,011.32x = 16,019,753,810.42
  5. Step 5: Solve for x
    x = 16,019,753,810.42/133,011.32
  6. Step 6: Final answer
    x = 120,439.03

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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.