Home / 84,166.26-116,160.70-81,396.98

Finding the Fourth Proportional to 84,166.26, 116,160.70 and 81,396.98

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Solution

The fourth proportional to 84,166.26, 116,160.70 and 81,396.98 is: 112,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,166.26 : 116,160.70 = 81,396.98 : x
  2. Step 2: Convert to fraction form
    84,166.26/116,160.70 = 81,396.98/x
  3. Step 3: Cross multiply
    84,166.26x = 116,160.70 × 81,396.98
  4. Step 4: Simplify right side
    84,166.26x = 9,455,130,174.69
  5. Step 5: Solve for x
    x = 9,455,130,174.69/84,166.26
  6. Step 6: Final answer
    x = 112,338.72

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1.5x scale

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.