Home / 122,072.13-168,448.61-68,345.71

Finding the Fourth Proportional to 122,072.13, 168,448.61 and 68,345.71

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Solution

The fourth proportional to 122,072.13, 168,448.61 and 68,345.71 is: 94,310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,072.13 : 168,448.61 = 68,345.71 : x
  2. Step 2: Convert to fraction form
    122,072.13/168,448.61 = 68,345.71/x
  3. Step 3: Cross multiply
    122,072.13x = 168,448.61 × 68,345.71
  4. Step 4: Simplify right side
    122,072.13x = 11,512,739,598.71
  5. Step 5: Solve for x
    x = 11,512,739,598.71/122,072.13
  6. Step 6: Final answer
    x = 94,310.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.