Home / 75,157.03-112,811.52-66,664.18

Finding the Fourth Proportional to 75,157.03, 112,811.52 and 66,664.18

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Solution

The fourth proportional to 75,157.03, 112,811.52 and 66,664.18 is: 100,063.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.03 : 112,811.52 = 66,664.18 : x
  2. Step 2: Convert to fraction form
    75,157.03/112,811.52 = 66,664.18/x
  3. Step 3: Cross multiply
    75,157.03x = 112,811.52 × 66,664.18
  4. Step 4: Simplify right side
    75,157.03x = 7,520,487,475.35
  5. Step 5: Solve for x
    x = 7,520,487,475.35/75,157.03
  6. Step 6: Final answer
    x = 100,063.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.