Home / 236,249.52-326,015.64-128,817.60

Finding the Fourth Proportional to 236,249.52, 326,015.64 and 128,817.60

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Solution

The fourth proportional to 236,249.52, 326,015.64 and 128,817.60 is: 177,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,249.52 : 326,015.64 = 128,817.60 : x
  2. Step 2: Convert to fraction form
    236,249.52/326,015.64 = 128,817.60/x
  3. Step 3: Cross multiply
    236,249.52x = 326,015.64 × 128,817.60
  4. Step 4: Simplify right side
    236,249.52x = 41,996,552,307.26
  5. Step 5: Solve for x
    x = 41,996,552,307.26/236,249.52
  6. Step 6: Final answer
    x = 177,763.55

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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.