Home / 186,288.81-257,063.90-105,716.33

Finding the Fourth Proportional to 186,288.81, 257,063.90 and 105,716.33

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Solution

The fourth proportional to 186,288.81, 257,063.90 and 105,716.33 is: 145,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,288.81 : 257,063.90 = 105,716.33 : x
  2. Step 2: Convert to fraction form
    186,288.81/257,063.90 = 105,716.33/x
  3. Step 3: Cross multiply
    186,288.81x = 257,063.90 × 105,716.33
  4. Step 4: Simplify right side
    186,288.81x = 27,175,851,554.91
  5. Step 5: Solve for x
    x = 27,175,851,554.91/186,288.81
  6. Step 6: Final answer
    x = 145,880.22

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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.