Home / 142,806.36-197,027.75-82,368.90

Finding the Fourth Proportional to 142,806.36, 197,027.75 and 82,368.90

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Solution

The fourth proportional to 142,806.36, 197,027.75 and 82,368.90 is: 113,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,806.36 : 197,027.75 = 82,368.90 : x
  2. Step 2: Convert to fraction form
    142,806.36/197,027.75 = 82,368.90/x
  3. Step 3: Cross multiply
    142,806.36x = 197,027.75 × 82,368.90
  4. Step 4: Simplify right side
    142,806.36x = 16,228,958,625.13
  5. Step 5: Solve for x
    x = 16,228,958,625.13/142,806.36
  6. Step 6: Final answer
    x = 113,643.11

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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.