Home / 133,072.13-183,670.38-87,758.30

Finding the Fourth Proportional to 133,072.13, 183,670.38 and 87,758.30

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Solution

The fourth proportional to 133,072.13, 183,670.38 and 87,758.30 is: 121,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.13 : 183,670.38 = 87,758.30 : x
  2. Step 2: Convert to fraction form
    133,072.13/183,670.38 = 87,758.30/x
  3. Step 3: Cross multiply
    133,072.13x = 183,670.38 × 87,758.30
  4. Step 4: Simplify right side
    133,072.13x = 16,118,600,309.15
  5. Step 5: Solve for x
    x = 16,118,600,309.15/133,072.13
  6. Step 6: Final answer
    x = 121,126.79

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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.