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Finding the Fourth Proportional to 132,419, 198,630.32 and 73,370

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Solution

The fourth proportional to 132,419, 198,630.32 and 73,370 is: 110,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419 : 198,630.32 = 73,370 : x
  2. Step 2: Convert to fraction form
    132,419/198,630.32 = 73,370/x
  3. Step 3: Cross multiply
    132,419x = 198,630.32 × 73,370
  4. Step 4: Simplify right side
    132,419x = 14,573,506,578.40
  5. Step 5: Solve for x
    x = 14,573,506,578.40/132,419
  6. Step 6: Final answer
    x = 110,056.01

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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.