Home / 116,887.19-161,229.51-81,064.13

Finding the Fourth Proportional to 116,887.19, 161,229.51 and 81,064.13

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Solution

The fourth proportional to 116,887.19, 161,229.51 and 81,064.13 is: 111,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,887.19 : 161,229.51 = 81,064.13 : x
  2. Step 2: Convert to fraction form
    116,887.19/161,229.51 = 81,064.13/x
  3. Step 3: Cross multiply
    116,887.19x = 161,229.51 × 81,064.13
  4. Step 4: Simplify right side
    116,887.19x = 13,069,929,152.33
  5. Step 5: Solve for x
    x = 13,069,929,152.33/116,887.19
  6. Step 6: Final answer
    x = 111,816.61

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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.