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Finding the Fourth Proportional to 139,671.95, 209,527.61 and 44,870.35

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Solution

The fourth proportional to 139,671.95, 209,527.61 and 44,870.35 is: 67,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,671.95 : 209,527.61 = 44,870.35 : x
  2. Step 2: Convert to fraction form
    139,671.95/209,527.61 = 44,870.35/x
  3. Step 3: Cross multiply
    139,671.95x = 209,527.61 × 44,870.35
  4. Step 4: Simplify right side
    139,671.95x = 9,401,577,195.36
  5. Step 5: Solve for x
    x = 9,401,577,195.36/139,671.95
  6. Step 6: Final answer
    x = 67,311.85

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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.