Home / 118,138.47-177,242.01-38,174.76

Finding the Fourth Proportional to 118,138.47, 177,242.01 and 38,174.76

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Solution

The fourth proportional to 118,138.47, 177,242.01 and 38,174.76 is: 57,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,138.47 : 177,242.01 = 38,174.76 : x
  2. Step 2: Convert to fraction form
    118,138.47/177,242.01 = 38,174.76/x
  3. Step 3: Cross multiply
    118,138.47x = 177,242.01 × 38,174.76
  4. Step 4: Simplify right side
    118,138.47x = 6,766,171,193.67
  5. Step 5: Solve for x
    x = 6,766,171,193.67/118,138.47
  6. Step 6: Final answer
    x = 57,273.23

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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.