Home / 236,333.92-326,122.32-128,897.68

Finding the Fourth Proportional to 236,333.92, 326,122.32 and 128,897.68

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Solution

The fourth proportional to 236,333.92, 326,122.32 and 128,897.68 is: 177,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,333.92 : 326,122.32 = 128,897.68 : x
  2. Step 2: Convert to fraction form
    236,333.92/326,122.32 = 128,897.68/x
  3. Step 3: Cross multiply
    236,333.92x = 326,122.32 × 128,897.68
  4. Step 4: Simplify right side
    236,333.92x = 42,036,410,444.22
  5. Step 5: Solve for x
    x = 42,036,410,444.22/236,333.92
  6. Step 6: Final answer
    x = 177,868.71

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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.