Home / 163,623.12-225,820.44-99,947.76

Finding the Fourth Proportional to 163,623.12, 225,820.44 and 99,947.76

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Solution

The fourth proportional to 163,623.12, 225,820.44 and 99,947.76 is: 137,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,623.12 : 225,820.44 = 99,947.76 : x
  2. Step 2: Convert to fraction form
    163,623.12/225,820.44 = 99,947.76/x
  3. Step 3: Cross multiply
    163,623.12x = 225,820.44 × 99,947.76
  4. Step 4: Simplify right side
    163,623.12x = 22,570,247,140.21
  5. Step 5: Solve for x
    x = 22,570,247,140.21/163,623.12
  6. Step 6: Final answer
    x = 137,940.45

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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.