Home / 118,922.13-178,412.94-83,930.13

Finding the Fourth Proportional to 118,922.13, 178,412.94 and 83,930.13

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Solution

The fourth proportional to 118,922.13, 178,412.94 and 83,930.13 is: 125,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,922.13 : 178,412.94 = 83,930.13 : x
  2. Step 2: Convert to fraction form
    118,922.13/178,412.94 = 83,930.13/x
  3. Step 3: Cross multiply
    118,922.13x = 178,412.94 × 83,930.13
  4. Step 4: Simplify right side
    118,922.13x = 14,974,221,247.88
  5. Step 5: Solve for x
    x = 14,974,221,247.88/118,922.13
  6. Step 6: Final answer
    x = 125,916.19

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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.