Home / 143,231.49-197,569.94-102,320.01

Finding the Fourth Proportional to 143,231.49, 197,569.94 and 102,320.01

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Solution

The fourth proportional to 143,231.49, 197,569.94 and 102,320.01 is: 141,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,231.49 : 197,569.94 = 102,320.01 : x
  2. Step 2: Convert to fraction form
    143,231.49/197,569.94 = 102,320.01/x
  3. Step 3: Cross multiply
    143,231.49x = 197,569.94 × 102,320.01
  4. Step 4: Simplify right side
    143,231.49x = 20,215,357,724.90
  5. Step 5: Solve for x
    x = 20,215,357,724.90/143,231.49
  6. Step 6: Final answer
    x = 141,137.66

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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.