Home / 143,537.28-197,422.08-115,180.80

Finding the Fourth Proportional to 143,537.28, 197,422.08 and 115,180.80

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Solution

The fourth proportional to 143,537.28, 197,422.08 and 115,180.80 is: 158,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,537.28 : 197,422.08 = 115,180.80 : x
  2. Step 2: Convert to fraction form
    143,537.28/197,422.08 = 115,180.80/x
  3. Step 3: Cross multiply
    143,537.28x = 197,422.08 × 115,180.80
  4. Step 4: Simplify right side
    143,537.28x = 22,739,233,112.06
  5. Step 5: Solve for x
    x = 22,739,233,112.06/143,537.28
  6. Step 6: Final answer
    x = 158,420.40

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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.