Home / 105,035.96-157,506.39-30,138.90

Finding the Fourth Proportional to 105,035.96, 157,506.39 and 30,138.90

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Solution

The fourth proportional to 105,035.96, 157,506.39 and 30,138.90 is: 45,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,035.96 : 157,506.39 = 30,138.90 : x
  2. Step 2: Convert to fraction form
    105,035.96/157,506.39 = 30,138.90/x
  3. Step 3: Cross multiply
    105,035.96x = 157,506.39 × 30,138.90
  4. Step 4: Simplify right side
    105,035.96x = 4,747,069,337.57
  5. Step 5: Solve for x
    x = 4,747,069,337.57/105,035.96
  6. Step 6: Final answer
    x = 45,194.71

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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.