Home / 191,161.81-263,807.58-105,115.33

Finding the Fourth Proportional to 191,161.81, 263,807.58 and 105,115.33

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Solution

The fourth proportional to 191,161.81, 263,807.58 and 105,115.33 is: 145,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,161.81 : 263,807.58 = 105,115.33 : x
  2. Step 2: Convert to fraction form
    191,161.81/263,807.58 = 105,115.33/x
  3. Step 3: Cross multiply
    191,161.81x = 263,807.58 × 105,115.33
  4. Step 4: Simplify right side
    191,161.81x = 27,730,219,923.27
  5. Step 5: Solve for x
    x = 27,730,219,923.27/191,161.81
  6. Step 6: Final answer
    x = 145,061.50

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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.