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Finding the Fourth Proportional to 132,938.70, 199,408.03 and 39,444.45

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Solution

The fourth proportional to 132,938.70, 199,408.03 and 39,444.45 is: 59,166.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,938.70 : 199,408.03 = 39,444.45 : x
  2. Step 2: Convert to fraction form
    132,938.70/199,408.03 = 39,444.45/x
  3. Step 3: Cross multiply
    132,938.70x = 199,408.03 × 39,444.45
  4. Step 4: Simplify right side
    132,938.70x = 7,865,540,068.93
  5. Step 5: Solve for x
    x = 7,865,540,068.93/132,938.70
  6. Step 6: Final answer
    x = 59,166.67

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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.