Home / 117,871.24-162,734.98-81,140.17

Finding the Fourth Proportional to 117,871.24, 162,734.98 and 81,140.17

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Solution

The fourth proportional to 117,871.24, 162,734.98 and 81,140.17 is: 112,023.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,871.24 : 162,734.98 = 81,140.17 : x
  2. Step 2: Convert to fraction form
    117,871.24/162,734.98 = 81,140.17/x
  3. Step 3: Cross multiply
    117,871.24x = 162,734.98 × 81,140.17
  4. Step 4: Simplify right side
    117,871.24x = 13,204,343,942.15
  5. Step 5: Solve for x
    x = 13,204,343,942.15/117,871.24
  6. Step 6: Final answer
    x = 112,023.46

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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.