Home / 143,183.80-197,615.19-103,030.48

Finding the Fourth Proportional to 143,183.80, 197,615.19 and 103,030.48

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Solution

The fourth proportional to 143,183.80, 197,615.19 and 103,030.48 is: 142,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,183.80 : 197,615.19 = 103,030.48 : x
  2. Step 2: Convert to fraction form
    143,183.80/197,615.19 = 103,030.48/x
  3. Step 3: Cross multiply
    143,183.80x = 197,615.19 × 103,030.48
  4. Step 4: Simplify right side
    143,183.80x = 20,360,387,880.99
  5. Step 5: Solve for x
    x = 20,360,387,880.99/143,183.80
  6. Step 6: Final answer
    x = 142,197.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.