Home / 104,975.72-157,416.18-30,078.71

Finding the Fourth Proportional to 104,975.72, 157,416.18 and 30,078.71

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Solution

The fourth proportional to 104,975.72, 157,416.18 and 30,078.71 is: 45,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,975.72 : 157,416.18 = 30,078.71 : x
  2. Step 2: Convert to fraction form
    104,975.72/157,416.18 = 30,078.71/x
  3. Step 3: Cross multiply
    104,975.72x = 157,416.18 × 30,078.71
  4. Step 4: Simplify right side
    104,975.72x = 4,734,875,627.53
  5. Step 5: Solve for x
    x = 4,734,875,627.53/104,975.72
  6. Step 6: Final answer
    x = 45,104.48

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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.