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Finding the Fourth Proportional to 132,017.45, 198,116.42 and 72,894.67

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Solution

The fourth proportional to 132,017.45, 198,116.42 and 72,894.67 is: 109,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,017.45 : 198,116.42 = 72,894.67 : x
  2. Step 2: Convert to fraction form
    132,017.45/198,116.42 = 72,894.67/x
  3. Step 3: Cross multiply
    132,017.45x = 198,116.42 × 72,894.67
  4. Step 4: Simplify right side
    132,017.45x = 14,441,630,197.72
  5. Step 5: Solve for x
    x = 14,441,630,197.72/132,017.45
  6. Step 6: Final answer
    x = 109,391.83

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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.