Home / 142,836.62-197,106.95-82,403.66

Finding the Fourth Proportional to 142,836.62, 197,106.95 and 82,403.66

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Solution

The fourth proportional to 142,836.62, 197,106.95 and 82,403.66 is: 113,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,836.62 : 197,106.95 = 82,403.66 : x
  2. Step 2: Convert to fraction form
    142,836.62/197,106.95 = 82,403.66/x
  3. Step 3: Cross multiply
    142,836.62x = 197,106.95 × 82,403.66
  4. Step 4: Simplify right side
    142,836.62x = 16,242,332,693.88
  5. Step 5: Solve for x
    x = 16,242,332,693.88/142,836.62
  6. Step 6: Final answer
    x = 113,712.67

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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.