Home / 155,174.90-214,115.57-91,503.86

Finding the Fourth Proportional to 155,174.90, 214,115.57 and 91,503.86

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Solution

The fourth proportional to 155,174.90, 214,115.57 and 91,503.86 is: 126,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,174.90 : 214,115.57 = 91,503.86 : x
  2. Step 2: Convert to fraction form
    155,174.90/214,115.57 = 91,503.86/x
  3. Step 3: Cross multiply
    155,174.90x = 214,115.57 × 91,503.86
  4. Step 4: Simplify right side
    155,174.90x = 19,592,401,141.10
  5. Step 5: Solve for x
    x = 19,592,401,141.10/155,174.90
  6. Step 6: Final answer
    x = 126,260.12

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1.5x scale

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.