Home / 188,111.94-282,167.14-68,140.81

Finding the Fourth Proportional to 188,111.94, 282,167.14 and 68,140.81

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Solution

The fourth proportional to 188,111.94, 282,167.14 and 68,140.81 is: 102,210.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,111.94 : 282,167.14 = 68,140.81 : x
  2. Step 2: Convert to fraction form
    188,111.94/282,167.14 = 68,140.81/x
  3. Step 3: Cross multiply
    188,111.94x = 282,167.14 × 68,140.81
  4. Step 4: Simplify right side
    188,111.94x = 19,227,097,593.46
  5. Step 5: Solve for x
    x = 19,227,097,593.46/188,111.94
  6. Step 6: Final answer
    x = 102,210.94

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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.