Home / 124,716.70-172,106.24-68,128.30

Finding the Fourth Proportional to 124,716.70, 172,106.24 and 68,128.30

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Solution

The fourth proportional to 124,716.70, 172,106.24 and 68,128.30 is: 94,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,716.70 : 172,106.24 = 68,128.30 : x
  2. Step 2: Convert to fraction form
    124,716.70/172,106.24 = 68,128.30/x
  3. Step 3: Cross multiply
    124,716.70x = 172,106.24 × 68,128.30
  4. Step 4: Simplify right side
    124,716.70x = 11,725,305,550.59
  5. Step 5: Solve for x
    x = 11,725,305,550.59/124,716.70
  6. Step 6: Final answer
    x = 94,015.52

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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.