Home / 186,435.84-257,376.78-126,324.12

Finding the Fourth Proportional to 186,435.84, 257,376.78 and 126,324.12

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Solution

The fourth proportional to 186,435.84, 257,376.78 and 126,324.12 is: 174,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,435.84 : 257,376.78 = 126,324.12 : x
  2. Step 2: Convert to fraction form
    186,435.84/257,376.78 = 126,324.12/x
  3. Step 3: Cross multiply
    186,435.84x = 257,376.78 × 126,324.12
  4. Step 4: Simplify right side
    186,435.84x = 32,512,895,241.93
  5. Step 5: Solve for x
    x = 32,512,895,241.93/186,435.84
  6. Step 6: Final answer
    x = 174,391.87

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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.