Home / 144,160.05-216,239.55-38,979

Finding the Fourth Proportional to 144,160.05, 216,239.55 and 38,979

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Solution

The fourth proportional to 144,160.05, 216,239.55 and 38,979 is: 58,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,160.05 : 216,239.55 = 38,979 : x
  2. Step 2: Convert to fraction form
    144,160.05/216,239.55 = 38,979/x
  3. Step 3: Cross multiply
    144,160.05x = 216,239.55 × 38,979
  4. Step 4: Simplify right side
    144,160.05x = 8,428,801,419.45
  5. Step 5: Solve for x
    x = 8,428,801,419.45/144,160.05
  6. Step 6: Final answer
    x = 58,468.36

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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.