Home / 163,412.32-225,533.55-99,786.82

Finding the Fourth Proportional to 163,412.32, 225,533.55 and 99,786.82

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Solution

The fourth proportional to 163,412.32, 225,533.55 and 99,786.82 is: 137,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,412.32 : 225,533.55 = 99,786.82 : x
  2. Step 2: Convert to fraction form
    163,412.32/225,533.55 = 99,786.82/x
  3. Step 3: Cross multiply
    163,412.32x = 225,533.55 × 99,786.82
  4. Step 4: Simplify right side
    163,412.32x = 22,505,275,757.81
  5. Step 5: Solve for x
    x = 22,505,275,757.81/163,412.32
  6. Step 6: Final answer
    x = 137,720.80

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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.