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Finding the Fourth Proportional to 139,189.41, 208,800.18 and 44,386.20

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Solution

The fourth proportional to 139,189.41, 208,800.18 and 44,386.20 is: 66,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,189.41 : 208,800.18 = 44,386.20 : x
  2. Step 2: Convert to fraction form
    139,189.41/208,800.18 = 44,386.20/x
  3. Step 3: Cross multiply
    139,189.41x = 208,800.18 × 44,386.20
  4. Step 4: Simplify right side
    139,189.41x = 9,267,846,549.52
  5. Step 5: Solve for x
    x = 9,267,846,549.52/139,189.41
  6. Step 6: Final answer
    x = 66,584.42

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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.