Home / 110,742.45-152,771.43-72,485.16

Finding the Fourth Proportional to 110,742.45, 152,771.43 and 72,485.16

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Solution

The fourth proportional to 110,742.45, 152,771.43 and 72,485.16 is: 99,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,742.45 : 152,771.43 = 72,485.16 : x
  2. Step 2: Convert to fraction form
    110,742.45/152,771.43 = 72,485.16/x
  3. Step 3: Cross multiply
    110,742.45x = 152,771.43 × 72,485.16
  4. Step 4: Simplify right side
    110,742.45x = 11,073,661,546.98
  5. Step 5: Solve for x
    x = 11,073,661,546.98/110,742.45
  6. Step 6: Final answer
    x = 99,994.73

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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.