Home / 131,522.13-181,457.72-80,481.60

Finding the Fourth Proportional to 131,522.13, 181,457.72 and 80,481.60

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Solution

The fourth proportional to 131,522.13, 181,457.72 and 80,481.60 is: 111,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,522.13 : 181,457.72 = 80,481.60 : x
  2. Step 2: Convert to fraction form
    131,522.13/181,457.72 = 80,481.60/x
  3. Step 3: Cross multiply
    131,522.13x = 181,457.72 × 80,481.60
  4. Step 4: Simplify right side
    131,522.13x = 14,604,007,537.35
  5. Step 5: Solve for x
    x = 14,604,007,537.35/131,522.13
  6. Step 6: Final answer
    x = 111,038.40

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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.