Home / 186,091.31-256,805.99-105,518.81

Finding the Fourth Proportional to 186,091.31, 256,805.99 and 105,518.81

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Solution

The fourth proportional to 186,091.31, 256,805.99 and 105,518.81 is: 145,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,091.31 : 256,805.99 = 105,518.81 : x
  2. Step 2: Convert to fraction form
    186,091.31/256,805.99 = 105,518.81/x
  3. Step 3: Cross multiply
    186,091.31x = 256,805.99 × 105,518.81
  4. Step 4: Simplify right side
    186,091.31x = 27,097,862,847.06
  5. Step 5: Solve for x
    x = 27,097,862,847.06/186,091.31
  6. Step 6: Final answer
    x = 145,615.95

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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.