Home / 106,906.20-160,013.70-83,405.40

Finding the Fourth Proportional to 106,906.20, 160,013.70 and 83,405.40

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Solution

The fourth proportional to 106,906.20, 160,013.70 and 83,405.40 is: 124,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,906.20 : 160,013.70 = 83,405.40 : x
  2. Step 2: Convert to fraction form
    106,906.20/160,013.70 = 83,405.40/x
  3. Step 3: Cross multiply
    106,906.20x = 160,013.70 × 83,405.40
  4. Step 4: Simplify right side
    106,906.20x = 13,346,006,653.98
  5. Step 5: Solve for x
    x = 13,346,006,653.98/106,906.20
  6. Step 6: Final answer
    x = 124,838.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.