Home / 236,339.06-326,151.75-128,909.07

Finding the Fourth Proportional to 236,339.06, 326,151.75 and 128,909.07

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Solution

The fourth proportional to 236,339.06, 326,151.75 and 128,909.07 is: 177,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,339.06 : 326,151.75 = 128,909.07 : x
  2. Step 2: Convert to fraction form
    236,339.06/326,151.75 = 128,909.07/x
  3. Step 3: Cross multiply
    236,339.06x = 326,151.75 × 128,909.07
  4. Step 4: Simplify right side
    236,339.06x = 42,043,918,771.37
  5. Step 5: Solve for x
    x = 42,043,918,771.37/236,339.06
  6. Step 6: Final answer
    x = 177,896.62

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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.