Home / 186,078.16-256,782.37-105,513.04

Finding the Fourth Proportional to 186,078.16, 256,782.37 and 105,513.04

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Solution

The fourth proportional to 186,078.16, 256,782.37 and 105,513.04 is: 145,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,078.16 : 256,782.37 = 105,513.04 : x
  2. Step 2: Convert to fraction form
    186,078.16/256,782.37 = 105,513.04/x
  3. Step 3: Cross multiply
    186,078.16x = 256,782.37 × 105,513.04
  4. Step 4: Simplify right side
    186,078.16x = 27,093,886,665.63
  5. Step 5: Solve for x
    x = 27,093,886,665.63/186,078.16
  6. Step 6: Final answer
    x = 145,604.88

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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.