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Finding the Fourth Proportional to 115,388.40, 173,100.42 and 48,828.90

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Solution

The fourth proportional to 115,388.40, 173,100.42 and 48,828.90 is: 73,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,388.40 : 173,100.42 = 48,828.90 : x
  2. Step 2: Convert to fraction form
    115,388.40/173,100.42 = 48,828.90/x
  3. Step 3: Cross multiply
    115,388.40x = 173,100.42 × 48,828.90
  4. Step 4: Simplify right side
    115,388.40x = 8,452,303,098.14
  5. Step 5: Solve for x
    x = 8,452,303,098.14/115,388.40
  6. Step 6: Final answer
    x = 73,250.89

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1.5x scale

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.