Home / 186,147.09-256,887.90-105,559.38

Finding the Fourth Proportional to 186,147.09, 256,887.90 and 105,559.38

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Solution

The fourth proportional to 186,147.09, 256,887.90 and 105,559.38 is: 145,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,147.09 : 256,887.90 = 105,559.38 : x
  2. Step 2: Convert to fraction form
    186,147.09/256,887.90 = 105,559.38/x
  3. Step 3: Cross multiply
    186,147.09x = 256,887.90 × 105,559.38
  4. Step 4: Simplify right side
    186,147.09x = 27,116,927,453.50
  5. Step 5: Solve for x
    x = 27,116,927,453.50/186,147.09
  6. Step 6: Final answer
    x = 145,674.73

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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.