Home / 186,428.31-257,277.47-105,853.16

Finding the Fourth Proportional to 186,428.31, 257,277.47 and 105,853.16

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Solution

The fourth proportional to 186,428.31, 257,277.47 and 105,853.16 is: 146,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,428.31 : 257,277.47 = 105,853.16 : x
  2. Step 2: Convert to fraction form
    186,428.31/257,277.47 = 105,853.16/x
  3. Step 3: Cross multiply
    186,428.31x = 257,277.47 × 105,853.16
  4. Step 4: Simplify right side
    186,428.31x = 27,233,631,380.65
  5. Step 5: Solve for x
    x = 27,233,631,380.65/186,428.31
  6. Step 6: Final answer
    x = 146,080.99

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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.