Home / 139,639.80-209,459.40-50,857.02

Finding the Fourth Proportional to 139,639.80, 209,459.40 and 50,857.02

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Solution

The fourth proportional to 139,639.80, 209,459.40 and 50,857.02 is: 76,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639.80 : 209,459.40 = 50,857.02 : x
  2. Step 2: Convert to fraction form
    139,639.80/209,459.40 = 50,857.02/x
  3. Step 3: Cross multiply
    139,639.80x = 209,459.40 × 50,857.02
  4. Step 4: Simplify right side
    139,639.80x = 10,652,480,894.99
  5. Step 5: Solve for x
    x = 10,652,480,894.99/139,639.80
  6. Step 6: Final answer
    x = 76,285.42

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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.