Home / 186,414.40-257,229.60-105,812.80

Finding the Fourth Proportional to 186,414.40, 257,229.60 and 105,812.80

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Solution

The fourth proportional to 186,414.40, 257,229.60 and 105,812.80 is: 146,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,414.40 : 257,229.60 = 105,812.80 : x
  2. Step 2: Convert to fraction form
    186,414.40/257,229.60 = 105,812.80/x
  3. Step 3: Cross multiply
    186,414.40x = 257,229.60 × 105,812.80
  4. Step 4: Simplify right side
    186,414.40x = 27,218,184,218.88
  5. Step 5: Solve for x
    x = 27,218,184,218.88/186,414.40
  6. Step 6: Final answer
    x = 146,009.02

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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.