Home / 137,861.65-190,256.70-84,131.16

Finding the Fourth Proportional to 137,861.65, 190,256.70 and 84,131.16

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Solution

The fourth proportional to 137,861.65, 190,256.70 and 84,131.16 is: 116,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,861.65 : 190,256.70 = 84,131.16 : x
  2. Step 2: Convert to fraction form
    137,861.65/190,256.70 = 84,131.16/x
  3. Step 3: Cross multiply
    137,861.65x = 190,256.70 × 84,131.16
  4. Step 4: Simplify right side
    137,861.65x = 16,006,515,997.56
  5. Step 5: Solve for x
    x = 16,006,515,997.56/137,861.65
  6. Step 6: Final answer
    x = 116,105.65

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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.