Home / 163,619.41-225,811.85-99,999.58

Finding the Fourth Proportional to 163,619.41, 225,811.85 and 99,999.58

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Solution

The fourth proportional to 163,619.41, 225,811.85 and 99,999.58 is: 138,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,619.41 : 225,811.85 = 99,999.58 : x
  2. Step 2: Convert to fraction form
    163,619.41/225,811.85 = 99,999.58/x
  3. Step 3: Cross multiply
    163,619.41x = 225,811.85 × 99,999.58
  4. Step 4: Simplify right side
    163,619.41x = 22,581,088,529.97
  5. Step 5: Solve for x
    x = 22,581,088,529.97/163,619.41
  6. Step 6: Final answer
    x = 138,009.84

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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.