Home / 236,397.62-326,222.28-128,967.64

Finding the Fourth Proportional to 236,397.62, 326,222.28 and 128,967.64

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Solution

The fourth proportional to 236,397.62, 326,222.28 and 128,967.64 is: 177,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,397.62 : 326,222.28 = 128,967.64 : x
  2. Step 2: Convert to fraction form
    236,397.62/326,222.28 = 128,967.64/x
  3. Step 3: Cross multiply
    236,397.62x = 326,222.28 × 128,967.64
  4. Step 4: Simplify right side
    236,397.62x = 42,072,116,751.46
  5. Step 5: Solve for x
    x = 42,072,116,751.46/236,397.62
  6. Step 6: Final answer
    x = 177,971.83

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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.