Home / 156,071.80-233,941.38-81,116.43

Finding the Fourth Proportional to 156,071.80, 233,941.38 and 81,116.43

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Solution

The fourth proportional to 156,071.80, 233,941.38 and 81,116.43 is: 121,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,071.80 : 233,941.38 = 81,116.43 : x
  2. Step 2: Convert to fraction form
    156,071.80/233,941.38 = 81,116.43/x
  3. Step 3: Cross multiply
    156,071.80x = 233,941.38 × 81,116.43
  4. Step 4: Simplify right side
    156,071.80x = 18,976,489,574.87
  5. Step 5: Solve for x
    x = 18,976,489,574.87/156,071.80
  6. Step 6: Final answer
    x = 121,588.20

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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.