Home / 156,623.10-216,140.01-85,003.11

Finding the Fourth Proportional to 156,623.10, 216,140.01 and 85,003.11

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Solution

The fourth proportional to 156,623.10, 216,140.01 and 85,003.11 is: 117,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,623.10 : 216,140.01 = 85,003.11 : x
  2. Step 2: Convert to fraction form
    156,623.10/216,140.01 = 85,003.11/x
  3. Step 3: Cross multiply
    156,623.10x = 216,140.01 × 85,003.11
  4. Step 4: Simplify right side
    156,623.10x = 18,372,573,045.43
  5. Step 5: Solve for x
    x = 18,372,573,045.43/156,623.10
  6. Step 6: Final answer
    x = 117,304.36

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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.