Home / 103,628.22-155,238.94-53,740.93

Finding the Fourth Proportional to 103,628.22, 155,238.94 and 53,740.93

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Solution

The fourth proportional to 103,628.22, 155,238.94 and 53,740.93 is: 80,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.22 : 155,238.94 = 53,740.93 : x
  2. Step 2: Convert to fraction form
    103,628.22/155,238.94 = 53,740.93/x
  3. Step 3: Cross multiply
    103,628.22x = 155,238.94 × 53,740.93
  4. Step 4: Simplify right side
    103,628.22x = 8,342,685,007.81
  5. Step 5: Solve for x
    x = 8,342,685,007.81/103,628.22
  6. Step 6: Final answer
    x = 80,505.92

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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.