Home / 236,774.87-326,739.85-129,348.75

Finding the Fourth Proportional to 236,774.87, 326,739.85 and 129,348.75

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Solution

The fourth proportional to 236,774.87, 326,739.85 and 129,348.75 is: 178,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,774.87 : 326,739.85 = 129,348.75 : x
  2. Step 2: Convert to fraction form
    236,774.87/326,739.85 = 129,348.75/x
  3. Step 3: Cross multiply
    236,774.87x = 326,739.85 × 129,348.75
  4. Step 4: Simplify right side
    236,774.87x = 42,263,390,600.47
  5. Step 5: Solve for x
    x = 42,263,390,600.47/236,774.87
  6. Step 6: Final answer
    x = 178,496.10

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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.