Home / 188,110.94-282,165.64-68,139.81

Finding the Fourth Proportional to 188,110.94, 282,165.64 and 68,139.81

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Solution

The fourth proportional to 188,110.94, 282,165.64 and 68,139.81 is: 102,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,110.94 : 282,165.64 = 68,139.81 : x
  2. Step 2: Convert to fraction form
    188,110.94/282,165.64 = 68,139.81/x
  3. Step 3: Cross multiply
    188,110.94x = 282,165.64 × 68,139.81
  4. Step 4: Simplify right side
    188,110.94x = 19,226,712,392.71
  5. Step 5: Solve for x
    x = 19,226,712,392.71/188,110.94
  6. Step 6: Final answer
    x = 102,209.44

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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.