Home / 106,013.82-158,981.85-31,114.74

Finding the Fourth Proportional to 106,013.82, 158,981.85 and 31,114.74

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Solution

The fourth proportional to 106,013.82, 158,981.85 and 31,114.74 is: 46,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,013.82 : 158,981.85 = 31,114.74 : x
  2. Step 2: Convert to fraction form
    106,013.82/158,981.85 = 31,114.74/x
  3. Step 3: Cross multiply
    106,013.82x = 158,981.85 × 31,114.74
  4. Step 4: Simplify right side
    106,013.82x = 4,946,678,927.47
  5. Step 5: Solve for x
    x = 4,946,678,927.47/106,013.82
  6. Step 6: Final answer
    x = 46,660.70

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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.