Home / 236,389.46-326,217.02-128,959.49

Finding the Fourth Proportional to 236,389.46, 326,217.02 and 128,959.49

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Solution

The fourth proportional to 236,389.46, 326,217.02 and 128,959.49 is: 177,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,389.46 : 326,217.02 = 128,959.49 : x
  2. Step 2: Convert to fraction form
    236,389.46/326,217.02 = 128,959.49/x
  3. Step 3: Cross multiply
    236,389.46x = 326,217.02 × 128,959.49
  4. Step 4: Simplify right side
    236,389.46x = 42,068,781,424.66
  5. Step 5: Solve for x
    x = 42,068,781,424.66/236,389.46
  6. Step 6: Final answer
    x = 177,963.87

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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.