Home / 156,933.88-216,570.16-85,314.04

Finding the Fourth Proportional to 156,933.88, 216,570.16 and 85,314.04

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Solution

The fourth proportional to 156,933.88, 216,570.16 and 85,314.04 is: 117,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,933.88 : 216,570.16 = 85,314.04 : x
  2. Step 2: Convert to fraction form
    156,933.88/216,570.16 = 85,314.04/x
  3. Step 3: Cross multiply
    156,933.88x = 216,570.16 × 85,314.04
  4. Step 4: Simplify right side
    156,933.88x = 18,476,475,293.05
  5. Step 5: Solve for x
    x = 18,476,475,293.05/156,933.88
  6. Step 6: Final answer
    x = 117,734.14

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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.