Home / 106,712.49-160,021.83-56,780.71

Finding the Fourth Proportional to 106,712.49, 160,021.83 and 56,780.71

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Solution

The fourth proportional to 106,712.49, 160,021.83 and 56,780.71 is: 85,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,712.49 : 160,021.83 = 56,780.71 : x
  2. Step 2: Convert to fraction form
    106,712.49/160,021.83 = 56,780.71/x
  3. Step 3: Cross multiply
    106,712.49x = 160,021.83 × 56,780.71
  4. Step 4: Simplify right side
    106,712.49x = 9,086,153,645.80
  5. Step 5: Solve for x
    x = 9,086,153,645.80/106,712.49
  6. Step 6: Final answer
    x = 85,146.11

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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.