Home / 190,181.63-262,458.84-105,298.69

Finding the Fourth Proportional to 190,181.63, 262,458.84 and 105,298.69

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Solution

The fourth proportional to 190,181.63, 262,458.84 and 105,298.69 is: 145,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,181.63 : 262,458.84 = 105,298.69 : x
  2. Step 2: Convert to fraction form
    190,181.63/262,458.84 = 105,298.69/x
  3. Step 3: Cross multiply
    190,181.63x = 262,458.84 × 105,298.69
  4. Step 4: Simplify right side
    190,181.63x = 27,636,571,769.64
  5. Step 5: Solve for x
    x = 27,636,571,769.64/190,181.63
  6. Step 6: Final answer
    x = 145,316.73

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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.