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Finding the Fourth Proportional to 139,574.77, 209,358.20 and 44,804.21

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Solution

The fourth proportional to 139,574.77, 209,358.20 and 44,804.21 is: 67,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,574.77 : 209,358.20 = 44,804.21 : x
  2. Step 2: Convert to fraction form
    139,574.77/209,358.20 = 44,804.21/x
  3. Step 3: Cross multiply
    139,574.77x = 209,358.20 × 44,804.21
  4. Step 4: Simplify right side
    139,574.77x = 9,380,128,758.02
  5. Step 5: Solve for x
    x = 9,380,128,758.02/139,574.77
  6. Step 6: Final answer
    x = 67,205.05

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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.