Home / 113,795.64-156,967.02-81,914.04

Finding the Fourth Proportional to 113,795.64, 156,967.02 and 81,914.04

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Solution

The fourth proportional to 113,795.64, 156,967.02 and 81,914.04 is: 112,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,795.64 : 156,967.02 = 81,914.04 : x
  2. Step 2: Convert to fraction form
    113,795.64/156,967.02 = 81,914.04/x
  3. Step 3: Cross multiply
    113,795.64x = 156,967.02 × 81,914.04
  4. Step 4: Simplify right side
    113,795.64x = 12,857,802,754.96
  5. Step 5: Solve for x
    x = 12,857,802,754.96/113,795.64
  6. Step 6: Final answer
    x = 112,990.29

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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.