Home / 161,971.26-243,027.06-87,003.94

Finding the Fourth Proportional to 161,971.26, 243,027.06 and 87,003.94

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Solution

The fourth proportional to 161,971.26, 243,027.06 and 87,003.94 is: 130,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,971.26 : 243,027.06 = 87,003.94 : x
  2. Step 2: Convert to fraction form
    161,971.26/243,027.06 = 87,003.94/x
  3. Step 3: Cross multiply
    161,971.26x = 243,027.06 × 87,003.94
  4. Step 4: Simplify right side
    161,971.26x = 21,144,310,096.46
  5. Step 5: Solve for x
    x = 21,144,310,096.46/161,971.26
  6. Step 6: Final answer
    x = 130,543.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.