Home / 236,301.54-326,086.28-128,869.62

Finding the Fourth Proportional to 236,301.54, 326,086.28 and 128,869.62

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Solution

The fourth proportional to 236,301.54, 326,086.28 and 128,869.62 is: 177,834.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,301.54 : 326,086.28 = 128,869.62 : x
  2. Step 2: Convert to fraction form
    236,301.54/326,086.28 = 128,869.62/x
  3. Step 3: Cross multiply
    236,301.54x = 326,086.28 × 128,869.62
  4. Step 4: Simplify right side
    236,301.54x = 42,022,614,990.81
  5. Step 5: Solve for x
    x = 42,022,614,990.81/236,301.54
  6. Step 6: Final answer
    x = 177,834.71

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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.