Home / 143,063.83-197,418.90-89,345.64

Finding the Fourth Proportional to 143,063.83, 197,418.90 and 89,345.64

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Solution

The fourth proportional to 143,063.83, 197,418.90 and 89,345.64 is: 123,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,063.83 : 197,418.90 = 89,345.64 : x
  2. Step 2: Convert to fraction form
    143,063.83/197,418.90 = 89,345.64/x
  3. Step 3: Cross multiply
    143,063.83x = 197,418.90 × 89,345.64
  4. Step 4: Simplify right side
    143,063.83x = 17,638,517,968.60
  5. Step 5: Solve for x
    x = 17,638,517,968.60/143,063.83
  6. Step 6: Final answer
    x = 123,291.25

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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.