Home / 236,391.22-326,228.10-128,967.16

Finding the Fourth Proportional to 236,391.22, 326,228.10 and 128,967.16

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Solution

The fourth proportional to 236,391.22, 326,228.10 and 128,967.16 is: 177,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,391.22 : 326,228.10 = 128,967.16 : x
  2. Step 2: Convert to fraction form
    236,391.22/326,228.10 = 128,967.16/x
  3. Step 3: Cross multiply
    236,391.22x = 326,228.10 × 128,967.16
  4. Step 4: Simplify right side
    236,391.22x = 42,072,711,569.20
  5. Step 5: Solve for x
    x = 42,072,711,569.20/236,391.22
  6. Step 6: Final answer
    x = 177,979.16

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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.