Home / 236,339.02-326,151.39-128,908.66

Finding the Fourth Proportional to 236,339.02, 326,151.39 and 128,908.66

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Solution

The fourth proportional to 236,339.02, 326,151.39 and 128,908.66 is: 177,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,339.02 : 326,151.39 = 128,908.66 : x
  2. Step 2: Convert to fraction form
    236,339.02/326,151.39 = 128,908.66/x
  3. Step 3: Cross multiply
    236,339.02x = 326,151.39 × 128,908.66
  4. Step 4: Simplify right side
    236,339.02x = 42,043,738,642.04
  5. Step 5: Solve for x
    x = 42,043,738,642.04/236,339.02
  6. Step 6: Final answer
    x = 177,895.88

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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.