Home / 143,278.10-197,724.66-89,594.54

Finding the Fourth Proportional to 143,278.10, 197,724.66 and 89,594.54

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Solution

The fourth proportional to 143,278.10, 197,724.66 and 89,594.54 is: 123,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,278.10 : 197,724.66 = 89,594.54 : x
  2. Step 2: Convert to fraction form
    143,278.10/197,724.66 = 89,594.54/x
  3. Step 3: Cross multiply
    143,278.10x = 197,724.66 × 89,594.54
  4. Step 4: Simplify right side
    143,278.10x = 17,715,048,970.73
  5. Step 5: Solve for x
    x = 17,715,048,970.73/143,278.10
  6. Step 6: Final answer
    x = 123,641.01

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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.