Home / 117,243.61-161,799.17-71,946.61

Finding the Fourth Proportional to 117,243.61, 161,799.17 and 71,946.61

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Solution

The fourth proportional to 117,243.61, 161,799.17 and 71,946.61 is: 99,288.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,243.61 : 161,799.17 = 71,946.61 : x
  2. Step 2: Convert to fraction form
    117,243.61/161,799.17 = 71,946.61/x
  3. Step 3: Cross multiply
    117,243.61x = 161,799.17 × 71,946.61
  4. Step 4: Simplify right side
    117,243.61x = 11,640,901,018.08
  5. Step 5: Solve for x
    x = 11,640,901,018.08/117,243.61
  6. Step 6: Final answer
    x = 99,288.15

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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.