Home / 186,538.28-257,414.10-105,963.80

Finding the Fourth Proportional to 186,538.28, 257,414.10 and 105,963.80

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Solution

The fourth proportional to 186,538.28, 257,414.10 and 105,963.80 is: 146,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,538.28 : 257,414.10 = 105,963.80 : x
  2. Step 2: Convert to fraction form
    186,538.28/257,414.10 = 105,963.80/x
  3. Step 3: Cross multiply
    186,538.28x = 257,414.10 × 105,963.80
  4. Step 4: Simplify right side
    186,538.28x = 27,276,576,209.58
  5. Step 5: Solve for x
    x = 27,276,576,209.58/186,538.28
  6. Step 6: Final answer
    x = 146,225.09

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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.