Home / 191,287.40-263,975.42-105,251.63

Finding the Fourth Proportional to 191,287.40, 263,975.42 and 105,251.63

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Solution

The fourth proportional to 191,287.40, 263,975.42 and 105,251.63 is: 145,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,287.40 : 263,975.42 = 105,251.63 : x
  2. Step 2: Convert to fraction form
    191,287.40/263,975.42 = 105,251.63/x
  3. Step 3: Cross multiply
    191,287.40x = 263,975.42 × 105,251.63
  4. Step 4: Simplify right side
    191,287.40x = 27,783,842,178.19
  5. Step 5: Solve for x
    x = 27,783,842,178.19/191,287.40
  6. Step 6: Final answer
    x = 145,246.59

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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.