Home / 186,571.42-257,468.66-105,999.09

Finding the Fourth Proportional to 186,571.42, 257,468.66 and 105,999.09

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Solution

The fourth proportional to 186,571.42, 257,468.66 and 105,999.09 is: 146,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,571.42 : 257,468.66 = 105,999.09 : x
  2. Step 2: Convert to fraction form
    186,571.42/257,468.66 = 105,999.09/x
  3. Step 3: Cross multiply
    186,571.42x = 257,468.66 × 105,999.09
  4. Step 4: Simplify right side
    186,571.42x = 27,291,443,663.52
  5. Step 5: Solve for x
    x = 27,291,443,663.52/186,571.42
  6. Step 6: Final answer
    x = 146,278.80

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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.