Home / 120,454.80-166,232.05-72,698.92

Finding the Fourth Proportional to 120,454.80, 166,232.05 and 72,698.92

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Solution

The fourth proportional to 120,454.80, 166,232.05 and 72,698.92 is: 100,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,454.80 : 166,232.05 = 72,698.92 : x
  2. Step 2: Convert to fraction form
    120,454.80/166,232.05 = 72,698.92/x
  3. Step 3: Cross multiply
    120,454.80x = 166,232.05 × 72,698.92
  4. Step 4: Simplify right side
    120,454.80x = 12,084,889,907.06
  5. Step 5: Solve for x
    x = 12,084,889,907.06/120,454.80
  6. Step 6: Final answer
    x = 100,327.18

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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.