Home / 236,291.02-326,078.67-128,858.56

Finding the Fourth Proportional to 236,291.02, 326,078.67 and 128,858.56

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Solution

The fourth proportional to 236,291.02, 326,078.67 and 128,858.56 is: 177,823.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,291.02 : 326,078.67 = 128,858.56 : x
  2. Step 2: Convert to fraction form
    236,291.02/326,078.67 = 128,858.56/x
  3. Step 3: Cross multiply
    236,291.02x = 326,078.67 × 128,858.56
  4. Step 4: Simplify right side
    236,291.02x = 42,018,027,862.92
  5. Step 5: Solve for x
    x = 42,018,027,862.92/236,291.02
  6. Step 6: Final answer
    x = 177,823.21

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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.