Home / 186,439.27-257,287.93-105,868.47

Finding the Fourth Proportional to 186,439.27, 257,287.93 and 105,868.47

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Solution

The fourth proportional to 186,439.27, 257,287.93 and 105,868.47 is: 146,099.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,439.27 : 257,287.93 = 105,868.47 : x
  2. Step 2: Convert to fraction form
    186,439.27/257,287.93 = 105,868.47/x
  3. Step 3: Cross multiply
    186,439.27x = 257,287.93 × 105,868.47
  4. Step 4: Simplify right side
    186,439.27x = 27,238,678,751.48
  5. Step 5: Solve for x
    x = 27,238,678,751.48/186,439.27
  6. Step 6: Final answer
    x = 146,099.47

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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.