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Finding the Fourth Proportional to 139,672.95, 209,529.11 and 44,871.35

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Solution

The fourth proportional to 139,672.95, 209,529.11 and 44,871.35 is: 67,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,672.95 : 209,529.11 = 44,871.35 : x
  2. Step 2: Convert to fraction form
    139,672.95/209,529.11 = 44,871.35/x
  3. Step 3: Cross multiply
    139,672.95x = 209,529.11 × 44,871.35
  4. Step 4: Simplify right side
    139,672.95x = 9,401,854,030.00
  5. Step 5: Solve for x
    x = 9,401,854,030.00/139,672.95
  6. Step 6: Final answer
    x = 67,313.35

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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.