Home / 132,100.90-197,813.04-72,870.73

Finding the Fourth Proportional to 132,100.90, 197,813.04 and 72,870.73

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Solution

The fourth proportional to 132,100.90, 197,813.04 and 72,870.73 is: 109,119.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,100.90 : 197,813.04 = 72,870.73 : x
  2. Step 2: Convert to fraction form
    132,100.90/197,813.04 = 72,870.73/x
  3. Step 3: Cross multiply
    132,100.90x = 197,813.04 × 72,870.73
  4. Step 4: Simplify right side
    132,100.90x = 14,414,780,628.32
  5. Step 5: Solve for x
    x = 14,414,780,628.32/132,100.90
  6. Step 6: Final answer
    x = 109,119.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.