Home / 186,138.05-256,875.44-105,550.34

Finding the Fourth Proportional to 186,138.05, 256,875.44 and 105,550.34

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Solution

The fourth proportional to 186,138.05, 256,875.44 and 105,550.34 is: 145,662.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,138.05 : 256,875.44 = 105,550.34 : x
  2. Step 2: Convert to fraction form
    186,138.05/256,875.44 = 105,550.34/x
  3. Step 3: Cross multiply
    186,138.05x = 256,875.44 × 105,550.34
  4. Step 4: Simplify right side
    186,138.05x = 27,113,288,217.52
  5. Step 5: Solve for x
    x = 27,113,288,217.52/186,138.05
  6. Step 6: Final answer
    x = 145,662.26

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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.