Home / 189,144.24-261,015.64-103,103.94

Finding the Fourth Proportional to 189,144.24, 261,015.64 and 103,103.94

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Solution

The fourth proportional to 189,144.24, 261,015.64 and 103,103.94 is: 142,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,144.24 : 261,015.64 = 103,103.94 : x
  2. Step 2: Convert to fraction form
    189,144.24/261,015.64 = 103,103.94/x
  3. Step 3: Cross multiply
    189,144.24x = 261,015.64 × 103,103.94
  4. Step 4: Simplify right side
    189,144.24x = 26,911,740,885.62
  5. Step 5: Solve for x
    x = 26,911,740,885.62/189,144.24
  6. Step 6: Final answer
    x = 142,281.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.