Home / 151,438.66-208,982.52-83,461.92

Finding the Fourth Proportional to 151,438.66, 208,982.52 and 83,461.92

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Solution

The fourth proportional to 151,438.66, 208,982.52 and 83,461.92 is: 115,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,438.66 : 208,982.52 = 83,461.92 : x
  2. Step 2: Convert to fraction form
    151,438.66/208,982.52 = 83,461.92/x
  3. Step 3: Cross multiply
    151,438.66x = 208,982.52 × 83,461.92
  4. Step 4: Simplify right side
    151,438.66x = 17,442,082,365.64
  5. Step 5: Solve for x
    x = 17,442,082,365.64/151,438.66
  6. Step 6: Final answer
    x = 115,175.89

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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.