Home / 118,139.47-177,243.51-38,175.76

Finding the Fourth Proportional to 118,139.47, 177,243.51 and 38,175.76

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Solution

The fourth proportional to 118,139.47, 177,243.51 and 38,175.76 is: 57,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,139.47 : 177,243.51 = 38,175.76 : x
  2. Step 2: Convert to fraction form
    118,139.47/177,243.51 = 38,175.76/x
  3. Step 3: Cross multiply
    118,139.47x = 177,243.51 × 38,175.76
  4. Step 4: Simplify right side
    118,139.47x = 6,766,405,699.32
  5. Step 5: Solve for x
    x = 6,766,405,699.32/118,139.47
  6. Step 6: Final answer
    x = 57,274.73

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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.