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Finding the Fourth Proportional to 84,129.04, 116,252.04 and 80,028.82

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Solution

The fourth proportional to 84,129.04, 116,252.04 and 80,028.82 is: 110,586.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,129.04 : 116,252.04 = 80,028.82 : x
  2. Step 2: Convert to fraction form
    84,129.04/116,252.04 = 80,028.82/x
  3. Step 3: Cross multiply
    84,129.04x = 116,252.04 × 80,028.82
  4. Step 4: Simplify right side
    84,129.04x = 9,303,513,583.79
  5. Step 5: Solve for x
    x = 9,303,513,583.79/84,129.04
  6. Step 6: Final answer
    x = 110,586.23

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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.