Home / 105,530.09-158,295.27-30,650.45

Finding the Fourth Proportional to 105,530.09, 158,295.27 and 30,650.45

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Solution

The fourth proportional to 105,530.09, 158,295.27 and 30,650.45 is: 45,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,530.09 : 158,295.27 = 30,650.45 : x
  2. Step 2: Convert to fraction form
    105,530.09/158,295.27 = 30,650.45/x
  3. Step 3: Cross multiply
    105,530.09x = 158,295.27 × 30,650.45
  4. Step 4: Simplify right side
    105,530.09x = 4,851,820,466.90
  5. Step 5: Solve for x
    x = 4,851,820,466.90/105,530.09
  6. Step 6: Final answer
    x = 45,975.71

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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.