Home / 143,102.80-197,520.36-89,355.28

Finding the Fourth Proportional to 143,102.80, 197,520.36 and 89,355.28

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Solution

The fourth proportional to 143,102.80, 197,520.36 and 89,355.28 is: 123,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,102.80 : 197,520.36 = 89,355.28 : x
  2. Step 2: Convert to fraction form
    143,102.80/197,520.36 = 89,355.28/x
  3. Step 3: Cross multiply
    143,102.80x = 197,520.36 × 89,355.28
  4. Step 4: Simplify right side
    143,102.80x = 17,649,487,073.50
  5. Step 5: Solve for x
    x = 17,649,487,073.50/143,102.80
  6. Step 6: Final answer
    x = 123,334.32

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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.