Home / 111,981.69-167,966.46-45,403.94

Finding the Fourth Proportional to 111,981.69, 167,966.46 and 45,403.94

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Solution

The fourth proportional to 111,981.69, 167,966.46 and 45,403.94 is: 68,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,981.69 : 167,966.46 = 45,403.94 : x
  2. Step 2: Convert to fraction form
    111,981.69/167,966.46 = 45,403.94/x
  3. Step 3: Cross multiply
    111,981.69x = 167,966.46 × 45,403.94
  4. Step 4: Simplify right side
    111,981.69x = 7,626,339,491.77
  5. Step 5: Solve for x
    x = 7,626,339,491.77/111,981.69
  6. Step 6: Final answer
    x = 68,103.45

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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.