Home / 103,828.55-143,280.41-58,505.72

Finding the Fourth Proportional to 103,828.55, 143,280.41 and 58,505.72

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Solution

The fourth proportional to 103,828.55, 143,280.41 and 58,505.72 is: 80,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,828.55 : 143,280.41 = 58,505.72 : x
  2. Step 2: Convert to fraction form
    103,828.55/143,280.41 = 58,505.72/x
  3. Step 3: Cross multiply
    103,828.55x = 143,280.41 × 58,505.72
  4. Step 4: Simplify right side
    103,828.55x = 8,382,722,540.01
  5. Step 5: Solve for x
    x = 8,382,722,540.01/103,828.55
  6. Step 6: Final answer
    x = 80,736.20

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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.