Home / 103,461.72-155,046.78-47,163.48

Finding the Fourth Proportional to 103,461.72, 155,046.78 and 47,163.48

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Solution

The fourth proportional to 103,461.72, 155,046.78 and 47,163.48 is: 70,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,461.72 : 155,046.78 = 47,163.48 : x
  2. Step 2: Convert to fraction form
    103,461.72/155,046.78 = 47,163.48/x
  3. Step 3: Cross multiply
    103,461.72x = 155,046.78 × 47,163.48
  4. Step 4: Simplify right side
    103,461.72x = 7,312,545,707.59
  5. Step 5: Solve for x
    x = 7,312,545,707.59/103,461.72
  6. Step 6: Final answer
    x = 70,678.76

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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.