Home / 186,387.36-257,205.42-105,804.11

Finding the Fourth Proportional to 186,387.36, 257,205.42 and 105,804.11

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Solution

The fourth proportional to 186,387.36, 257,205.42 and 105,804.11 is: 146,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,387.36 : 257,205.42 = 105,804.11 : x
  2. Step 2: Convert to fraction form
    186,387.36/257,205.42 = 105,804.11/x
  3. Step 3: Cross multiply
    186,387.36x = 257,205.42 × 105,804.11
  4. Step 4: Simplify right side
    186,387.36x = 27,213,389,264.25
  5. Step 5: Solve for x
    x = 27,213,389,264.25/186,387.36
  6. Step 6: Final answer
    x = 146,004.48

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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.