Home / 117,243.60-161,799.18-71,946.61

Finding the Fourth Proportional to 117,243.60, 161,799.18 and 71,946.61

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Solution

The fourth proportional to 117,243.60, 161,799.18 and 71,946.61 is: 99,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,243.60 : 161,799.18 = 71,946.61 : x
  2. Step 2: Convert to fraction form
    117,243.60/161,799.18 = 71,946.61/x
  3. Step 3: Cross multiply
    117,243.60x = 161,799.18 × 71,946.61
  4. Step 4: Simplify right side
    117,243.60x = 11,640,902,097.28
  5. Step 5: Solve for x
    x = 11,640,902,097.28/117,243.60
  6. Step 6: Final answer
    x = 99,288.17

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1.5x scale

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.