Home / 236,427.71-326,269.76-128,997.68

Finding the Fourth Proportional to 236,427.71, 326,269.76 and 128,997.68

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Solution

The fourth proportional to 236,427.71, 326,269.76 and 128,997.68 is: 178,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,427.71 : 326,269.76 = 128,997.68 : x
  2. Step 2: Convert to fraction form
    236,427.71/326,269.76 = 128,997.68/x
  3. Step 3: Cross multiply
    236,427.71x = 326,269.76 × 128,997.68
  4. Step 4: Simplify right side
    236,427.71x = 42,088,039,817.82
  5. Step 5: Solve for x
    x = 42,088,039,817.82/236,427.71
  6. Step 6: Final answer
    x = 178,016.53

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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.