Home / 189,925.92-262,081.44-105,021.72

Finding the Fourth Proportional to 189,925.92, 262,081.44 and 105,021.72

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Solution

The fourth proportional to 189,925.92, 262,081.44 and 105,021.72 is: 144,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,925.92 : 262,081.44 = 105,021.72 : x
  2. Step 2: Convert to fraction form
    189,925.92/262,081.44 = 105,021.72/x
  3. Step 3: Cross multiply
    189,925.92x = 262,081.44 × 105,021.72
  4. Step 4: Simplify right side
    189,925.92x = 27,524,243,608.88
  5. Step 5: Solve for x
    x = 27,524,243,608.88/189,925.92
  6. Step 6: Final answer
    x = 144,920.94

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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.