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Finding the Fourth Proportional to 134,423.80, 201,635.70 and 40,917.40

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Solution

The fourth proportional to 134,423.80, 201,635.70 and 40,917.40 is: 61,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,423.80 : 201,635.70 = 40,917.40 : x
  2. Step 2: Convert to fraction form
    134,423.80/201,635.70 = 40,917.40/x
  3. Step 3: Cross multiply
    134,423.80x = 201,635.70 × 40,917.40
  4. Step 4: Simplify right side
    134,423.80x = 8,250,408,591.18
  5. Step 5: Solve for x
    x = 8,250,408,591.18/134,423.80
  6. Step 6: Final answer
    x = 61,376.10

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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.