Home / 236,395.22-326,226.17-128,967.51

Finding the Fourth Proportional to 236,395.22, 326,226.17 and 128,967.51

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Solution

The fourth proportional to 236,395.22, 326,226.17 and 128,967.51 is: 177,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,395.22 : 326,226.17 = 128,967.51 : x
  2. Step 2: Convert to fraction form
    236,395.22/326,226.17 = 128,967.51/x
  3. Step 3: Cross multiply
    236,395.22x = 326,226.17 × 128,967.51
  4. Step 4: Simplify right side
    236,395.22x = 42,072,577,164.16
  5. Step 5: Solve for x
    x = 42,072,577,164.16/236,395.22
  6. Step 6: Final answer
    x = 177,975.58

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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.