Home / 143,011.55-197,365.31-82,584.74

Finding the Fourth Proportional to 143,011.55, 197,365.31 and 82,584.74

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Solution

The fourth proportional to 143,011.55, 197,365.31 and 82,584.74 is: 113,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,011.55 : 197,365.31 = 82,584.74 : x
  2. Step 2: Convert to fraction form
    143,011.55/197,365.31 = 82,584.74/x
  3. Step 3: Cross multiply
    143,011.55x = 197,365.31 × 82,584.74
  4. Step 4: Simplify right side
    143,011.55x = 16,299,363,201.55
  5. Step 5: Solve for x
    x = 16,299,363,201.55/143,011.55
  6. Step 6: Final answer
    x = 113,972.35

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1.5x scale

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.