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Finding the Fourth Proportional to 139,587.75, 209,401.02 and 44,795.70

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Solution

The fourth proportional to 139,587.75, 209,401.02 and 44,795.70 is: 67,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,587.75 : 209,401.02 = 44,795.70 : x
  2. Step 2: Convert to fraction form
    139,587.75/209,401.02 = 44,795.70/x
  3. Step 3: Cross multiply
    139,587.75x = 209,401.02 × 44,795.70
  4. Step 4: Simplify right side
    139,587.75x = 9,380,265,271.61
  5. Step 5: Solve for x
    x = 9,380,265,271.61/139,587.75
  6. Step 6: Final answer
    x = 67,199.77

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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.