Home / 106,434.64-146,727.18-83,734.21

Finding the Fourth Proportional to 106,434.64, 146,727.18 and 83,734.21

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Solution

The fourth proportional to 106,434.64, 146,727.18 and 83,734.21 is: 115,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,434.64 : 146,727.18 = 83,734.21 : x
  2. Step 2: Convert to fraction form
    106,434.64/146,727.18 = 83,734.21/x
  3. Step 3: Cross multiply
    106,434.64x = 146,727.18 × 83,734.21
  4. Step 4: Simplify right side
    106,434.64x = 12,286,084,136.01
  5. Step 5: Solve for x
    x = 12,286,084,136.01/106,434.64
  6. Step 6: Final answer
    x = 115,433.14

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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.