Home / 143,720.56-198,319.24-83,310.16

Finding the Fourth Proportional to 143,720.56, 198,319.24 and 83,310.16

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Solution

The fourth proportional to 143,720.56, 198,319.24 and 83,310.16 is: 114,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,720.56 : 198,319.24 = 83,310.16 : x
  2. Step 2: Convert to fraction form
    143,720.56/198,319.24 = 83,310.16/x
  3. Step 3: Cross multiply
    143,720.56x = 198,319.24 × 83,310.16
  4. Step 4: Simplify right side
    143,720.56x = 16,522,007,615.48
  5. Step 5: Solve for x
    x = 16,522,007,615.48/143,720.56
  6. Step 6: Final answer
    x = 114,959.25

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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.