Home / 186,515.41-257,383.21-105,942.69

Finding the Fourth Proportional to 186,515.41, 257,383.21 and 105,942.69

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Solution

The fourth proportional to 186,515.41, 257,383.21 and 105,942.69 is: 146,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,515.41 : 257,383.21 = 105,942.69 : x
  2. Step 2: Convert to fraction form
    186,515.41/257,383.21 = 105,942.69/x
  3. Step 3: Cross multiply
    186,515.41x = 257,383.21 × 105,942.69
  4. Step 4: Simplify right side
    186,515.41x = 27,267,869,628.23
  5. Step 5: Solve for x
    x = 27,267,869,628.23/186,515.41
  6. Step 6: Final answer
    x = 146,196.34

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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.