Home / 169,128.09-233,553.69-126,612.81

Finding the Fourth Proportional to 169,128.09, 233,553.69 and 126,612.81

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Solution

The fourth proportional to 169,128.09, 233,553.69 and 126,612.81 is: 174,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,128.09 : 233,553.69 = 126,612.81 : x
  2. Step 2: Convert to fraction form
    169,128.09/233,553.69 = 126,612.81/x
  3. Step 3: Cross multiply
    169,128.09x = 233,553.69 × 126,612.81
  4. Step 4: Simplify right side
    169,128.09x = 29,570,888,976.77
  5. Step 5: Solve for x
    x = 29,570,888,976.77/169,128.09
  6. Step 6: Final answer
    x = 174,843.16

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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.