Home / 147,388.74-203,338.72-90,701.70

Finding the Fourth Proportional to 147,388.74, 203,338.72 and 90,701.70

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Solution

The fourth proportional to 147,388.74, 203,338.72 and 90,701.70 is: 125,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,388.74 : 203,338.72 = 90,701.70 : x
  2. Step 2: Convert to fraction form
    147,388.74/203,338.72 = 90,701.70/x
  3. Step 3: Cross multiply
    147,388.74x = 203,338.72 × 90,701.70
  4. Step 4: Simplify right side
    147,388.74x = 18,443,167,579.82
  5. Step 5: Solve for x
    x = 18,443,167,579.82/147,388.74
  6. Step 6: Final answer
    x = 125,132.81

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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.