Home / 186,499.44-257,409-122,842.80

Finding the Fourth Proportional to 186,499.44, 257,409 and 122,842.80

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Solution

The fourth proportional to 186,499.44, 257,409 and 122,842.80 is: 169,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,499.44 : 257,409 = 122,842.80 : x
  2. Step 2: Convert to fraction form
    186,499.44/257,409 = 122,842.80/x
  3. Step 3: Cross multiply
    186,499.44x = 257,409 × 122,842.80
  4. Step 4: Simplify right side
    186,499.44x = 31,620,842,305.20
  5. Step 5: Solve for x
    x = 31,620,842,305.20/186,499.44
  6. Step 6: Final answer
    x = 169,549.26

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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.