Home / 144,139.44-216,214.64-38,958.46

Finding the Fourth Proportional to 144,139.44, 216,214.64 and 38,958.46

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Solution

The fourth proportional to 144,139.44, 216,214.64 and 38,958.46 is: 58,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,139.44 : 216,214.64 = 38,958.46 : x
  2. Step 2: Convert to fraction form
    144,139.44/216,214.64 = 38,958.46/x
  3. Step 3: Cross multiply
    144,139.44x = 216,214.64 × 38,958.46
  4. Step 4: Simplify right side
    144,139.44x = 8,423,389,403.85
  5. Step 5: Solve for x
    x = 8,423,389,403.85/144,139.44
  6. Step 6: Final answer
    x = 58,439.17

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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.