Home / 139,244.04-208,694.54-54,919.40

Finding the Fourth Proportional to 139,244.04, 208,694.54 and 54,919.40

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Solution

The fourth proportional to 139,244.04, 208,694.54 and 54,919.40 is: 82,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,244.04 : 208,694.54 = 54,919.40 : x
  2. Step 2: Convert to fraction form
    139,244.04/208,694.54 = 54,919.40/x
  3. Step 3: Cross multiply
    139,244.04x = 208,694.54 × 54,919.40
  4. Step 4: Simplify right side
    139,244.04x = 11,461,378,920.08
  5. Step 5: Solve for x
    x = 11,461,378,920.08/139,244.04
  6. Step 6: Final answer
    x = 82,311.45

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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.