Home / 104,089.20-143,552.28-83,940.24

Finding the Fourth Proportional to 104,089.20, 143,552.28 and 83,940.24

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Solution

The fourth proportional to 104,089.20, 143,552.28 and 83,940.24 is: 115,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,089.20 : 143,552.28 = 83,940.24 : x
  2. Step 2: Convert to fraction form
    104,089.20/143,552.28 = 83,940.24/x
  3. Step 3: Cross multiply
    104,089.20x = 143,552.28 × 83,940.24
  4. Step 4: Simplify right side
    104,089.20x = 12,049,812,835.75
  5. Step 5: Solve for x
    x = 12,049,812,835.75/104,089.20
  6. Step 6: Final answer
    x = 115,764.29

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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.