Home / 191,289.15-263,981.04-105,249.26

Finding the Fourth Proportional to 191,289.15, 263,981.04 and 105,249.26

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Solution

The fourth proportional to 191,289.15, 263,981.04 and 105,249.26 is: 145,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,289.15 : 263,981.04 = 105,249.26 : x
  2. Step 2: Convert to fraction form
    191,289.15/263,981.04 = 105,249.26/x
  3. Step 3: Cross multiply
    191,289.15x = 263,981.04 × 105,249.26
  4. Step 4: Simplify right side
    191,289.15x = 27,783,807,794.13
  5. Step 5: Solve for x
    x = 27,783,807,794.13/191,289.15
  6. Step 6: Final answer
    x = 145,245.08

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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.