Home / 115,911.90-173,608.65-89,531.10

Finding the Fourth Proportional to 115,911.90, 173,608.65 and 89,531.10

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Solution

The fourth proportional to 115,911.90, 173,608.65 and 89,531.10 is: 134,096.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,911.90 : 173,608.65 = 89,531.10 : x
  2. Step 2: Convert to fraction form
    115,911.90/173,608.65 = 89,531.10/x
  3. Step 3: Cross multiply
    115,911.90x = 173,608.65 × 89,531.10
  4. Step 4: Simplify right side
    115,911.90x = 15,543,373,404.02
  5. Step 5: Solve for x
    x = 15,543,373,404.02/115,911.90
  6. Step 6: Final answer
    x = 134,096.44

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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.