Home / 145,717.22-218,422.68-66,766.52

Finding the Fourth Proportional to 145,717.22, 218,422.68 and 66,766.52

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Solution

The fourth proportional to 145,717.22, 218,422.68 and 66,766.52 is: 100,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,717.22 : 218,422.68 = 66,766.52 : x
  2. Step 2: Convert to fraction form
    145,717.22/218,422.68 = 66,766.52/x
  3. Step 3: Cross multiply
    145,717.22x = 218,422.68 × 66,766.52
  4. Step 4: Simplify right side
    145,717.22x = 14,583,322,232.67
  5. Step 5: Solve for x
    x = 14,583,322,232.67/145,717.22
  6. Step 6: Final answer
    x = 100,079.61

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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.