Home / 236,813.15-326,806.85-129,389.84

Finding the Fourth Proportional to 236,813.15, 326,806.85 and 129,389.84

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Solution

The fourth proportional to 236,813.15, 326,806.85 and 129,389.84 is: 178,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,813.15 : 326,806.85 = 129,389.84 : x
  2. Step 2: Convert to fraction form
    236,813.15/326,806.85 = 129,389.84/x
  3. Step 3: Cross multiply
    236,813.15x = 326,806.85 × 129,389.84
  4. Step 4: Simplify right side
    236,813.15x = 42,285,485,947.37
  5. Step 5: Solve for x
    x = 42,285,485,947.37/236,813.15
  6. Step 6: Final answer
    x = 178,560.55

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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.