Home / 186,108.71-256,832.91-105,534.54

Finding the Fourth Proportional to 186,108.71, 256,832.91 and 105,534.54

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Solution

The fourth proportional to 186,108.71, 256,832.91 and 105,534.54 is: 145,639.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,108.71 : 256,832.91 = 105,534.54 : x
  2. Step 2: Convert to fraction form
    186,108.71/256,832.91 = 105,534.54/x
  3. Step 3: Cross multiply
    186,108.71x = 256,832.91 × 105,534.54
  4. Step 4: Simplify right side
    186,108.71x = 27,104,743,013.71
  5. Step 5: Solve for x
    x = 27,104,743,013.71/186,108.71
  6. Step 6: Final answer
    x = 145,639.31

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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.