Home / 118,099.20-177,035.40-39,172.80

Finding the Fourth Proportional to 118,099.20, 177,035.40 and 39,172.80

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Solution

The fourth proportional to 118,099.20, 177,035.40 and 39,172.80 is: 58,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,099.20 : 177,035.40 = 39,172.80 : x
  2. Step 2: Convert to fraction form
    118,099.20/177,035.40 = 39,172.80/x
  3. Step 3: Cross multiply
    118,099.20x = 177,035.40 × 39,172.80
  4. Step 4: Simplify right side
    118,099.20x = 6,934,972,317.12
  5. Step 5: Solve for x
    x = 6,934,972,317.12/118,099.20
  6. Step 6: Final answer
    x = 58,721.59

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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.