Home / 143,384.36-197,881.50-86,025.84

Finding the Fourth Proportional to 143,384.36, 197,881.50 and 86,025.84

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Solution

The fourth proportional to 143,384.36, 197,881.50 and 86,025.84 is: 118,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,384.36 : 197,881.50 = 86,025.84 : x
  2. Step 2: Convert to fraction form
    143,384.36/197,881.50 = 86,025.84/x
  3. Step 3: Cross multiply
    143,384.36x = 197,881.50 × 86,025.84
  4. Step 4: Simplify right side
    143,384.36x = 17,022,922,257.96
  5. Step 5: Solve for x
    x = 17,022,922,257.96/143,384.36
  6. Step 6: Final answer
    x = 118,722.31

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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.