Home / 143,307.48-197,768.40-82,872.36

Finding the Fourth Proportional to 143,307.48, 197,768.40 and 82,872.36

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Solution

The fourth proportional to 143,307.48, 197,768.40 and 82,872.36 is: 114,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,307.48 : 197,768.40 = 82,872.36 : x
  2. Step 2: Convert to fraction form
    143,307.48/197,768.40 = 82,872.36/x
  3. Step 3: Cross multiply
    143,307.48x = 197,768.40 × 82,872.36
  4. Step 4: Simplify right side
    143,307.48x = 16,389,534,041.42
  5. Step 5: Solve for x
    x = 16,389,534,041.42/143,307.48
  6. Step 6: Final answer
    x = 114,366.21

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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.