Home / 236,329.74-326,138.92-128,899.77

Finding the Fourth Proportional to 236,329.74, 326,138.92 and 128,899.77

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Solution

The fourth proportional to 236,329.74, 326,138.92 and 128,899.77 is: 177,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,329.74 : 326,138.92 = 128,899.77 : x
  2. Step 2: Convert to fraction form
    236,329.74/326,138.92 = 128,899.77/x
  3. Step 3: Cross multiply
    236,329.74x = 326,138.92 × 128,899.77
  4. Step 4: Simplify right side
    236,329.74x = 42,039,230,145.35
  5. Step 5: Solve for x
    x = 42,039,230,145.35/236,329.74
  6. Step 6: Final answer
    x = 177,883.80

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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.