Home / 147,515.49-203,597.91-87,082.59

Finding the Fourth Proportional to 147,515.49, 203,597.91 and 87,082.59

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Solution

The fourth proportional to 147,515.49, 203,597.91 and 87,082.59 is: 120,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,515.49 : 203,597.91 = 87,082.59 : x
  2. Step 2: Convert to fraction form
    147,515.49/203,597.91 = 87,082.59/x
  3. Step 3: Cross multiply
    147,515.49x = 203,597.91 × 87,082.59
  4. Step 4: Simplify right side
    147,515.49x = 17,729,833,321.39
  5. Step 5: Solve for x
    x = 17,729,833,321.39/147,515.49
  6. Step 6: Final answer
    x = 120,189.64

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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.