Home / 156,356.09-215,771.37-84,736.11

Finding the Fourth Proportional to 156,356.09, 215,771.37 and 84,736.11

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Solution

The fourth proportional to 156,356.09, 215,771.37 and 84,736.11 is: 116,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,356.09 : 215,771.37 = 84,736.11 : x
  2. Step 2: Convert to fraction form
    156,356.09/215,771.37 = 84,736.11/x
  3. Step 3: Cross multiply
    156,356.09x = 215,771.37 × 84,736.11
  4. Step 4: Simplify right side
    156,356.09x = 18,283,626,543.17
  5. Step 5: Solve for x
    x = 18,283,626,543.17/156,356.09
  6. Step 6: Final answer
    x = 116,935.82

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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.