Home / 191,303.91-263,998.16-105,268.14

Finding the Fourth Proportional to 191,303.91, 263,998.16 and 105,268.14

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Solution

The fourth proportional to 191,303.91, 263,998.16 and 105,268.14 is: 145,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,303.91 : 263,998.16 = 105,268.14 : x
  2. Step 2: Convert to fraction form
    191,303.91/263,998.16 = 105,268.14/x
  3. Step 3: Cross multiply
    191,303.91x = 263,998.16 × 105,268.14
  4. Step 4: Simplify right side
    191,303.91x = 27,790,594,740.28
  5. Step 5: Solve for x
    x = 27,790,594,740.28/191,303.91
  6. Step 6: Final answer
    x = 145,269.35

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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.