Home / 236,815.92-326,802.13-129,383.64

Finding the Fourth Proportional to 236,815.92, 326,802.13 and 129,383.64

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Solution

The fourth proportional to 236,815.92, 326,802.13 and 129,383.64 is: 178,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,815.92 : 326,802.13 = 129,383.64 : x
  2. Step 2: Convert to fraction form
    236,815.92/326,802.13 = 129,383.64/x
  3. Step 3: Cross multiply
    236,815.92x = 326,802.13 × 129,383.64
  4. Step 4: Simplify right side
    236,815.92x = 42,282,848,815.69
  5. Step 5: Solve for x
    x = 42,282,848,815.69/236,815.92
  6. Step 6: Final answer
    x = 178,547.32

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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.