Home / 106,419.33-146,706.03-83,718.87

Finding the Fourth Proportional to 106,419.33, 146,706.03 and 83,718.87

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Solution

The fourth proportional to 106,419.33, 146,706.03 and 83,718.87 is: 115,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,419.33 : 146,706.03 = 83,718.87 : x
  2. Step 2: Convert to fraction form
    106,419.33/146,706.03 = 83,718.87/x
  3. Step 3: Cross multiply
    106,419.33x = 146,706.03 × 83,718.87
  4. Step 4: Simplify right side
    106,419.33x = 12,282,063,053.79
  5. Step 5: Solve for x
    x = 12,282,063,053.79/106,419.33
  6. Step 6: Final answer
    x = 115,411.96

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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.