Home / 236,917.12-326,923.14-129,480.34

Finding the Fourth Proportional to 236,917.12, 326,923.14 and 129,480.34

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Solution

The fourth proportional to 236,917.12, 326,923.14 and 129,480.34 is: 178,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,917.12 : 326,923.14 = 129,480.34 : x
  2. Step 2: Convert to fraction form
    236,917.12/326,923.14 = 129,480.34/x
  3. Step 3: Cross multiply
    236,917.12x = 326,923.14 × 129,480.34
  4. Step 4: Simplify right side
    236,917.12x = 42,330,119,321.07
  5. Step 5: Solve for x
    x = 42,330,119,321.07/236,917.12
  6. Step 6: Final answer
    x = 178,670.58

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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.