Home / 236,917.12-326,923.12-129,480.36

Finding the Fourth Proportional to 236,917.12, 326,923.12 and 129,480.36

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Solution

The fourth proportional to 236,917.12, 326,923.12 and 129,480.36 is: 178,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,917.12 : 326,923.12 = 129,480.36 : x
  2. Step 2: Convert to fraction form
    236,917.12/326,923.12 = 129,480.36/x
  3. Step 3: Cross multiply
    236,917.12x = 326,923.12 × 129,480.36
  4. Step 4: Simplify right side
    236,917.12x = 42,330,123,269.92
  5. Step 5: Solve for x
    x = 42,330,123,269.92/236,917.12
  6. Step 6: Final answer
    x = 178,670.60

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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.