Home / 186,121.80-256,826.70-105,533.28

Finding the Fourth Proportional to 186,121.80, 256,826.70 and 105,533.28

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Solution

The fourth proportional to 186,121.80, 256,826.70 and 105,533.28 is: 145,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,121.80 : 256,826.70 = 105,533.28 : x
  2. Step 2: Convert to fraction form
    186,121.80/256,826.70 = 105,533.28/x
  3. Step 3: Cross multiply
    186,121.80x = 256,826.70 × 105,533.28
  4. Step 4: Simplify right side
    186,121.80x = 27,103,764,042.58
  5. Step 5: Solve for x
    x = 27,103,764,042.58/186,121.80
  6. Step 6: Final answer
    x = 145,623.80

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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.