Home / 156,623.14-216,140.07-85,003.15

Finding the Fourth Proportional to 156,623.14, 216,140.07 and 85,003.15

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Solution

The fourth proportional to 156,623.14, 216,140.07 and 85,003.15 is: 117,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,623.14 : 216,140.07 = 85,003.15 : x
  2. Step 2: Convert to fraction form
    156,623.14/216,140.07 = 85,003.15/x
  3. Step 3: Cross multiply
    156,623.14x = 216,140.07 × 85,003.15
  4. Step 4: Simplify right side
    156,623.14x = 18,372,586,791.22
  5. Step 5: Solve for x
    x = 18,372,586,791.22/156,623.14
  6. Step 6: Final answer
    x = 117,304.42

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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.