Home / 186,409.43-257,278.37-109,923.89

Finding the Fourth Proportional to 186,409.43, 257,278.37 and 109,923.89

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Solution

The fourth proportional to 186,409.43, 257,278.37 and 109,923.89 is: 151,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,409.43 : 257,278.37 = 109,923.89 : x
  2. Step 2: Convert to fraction form
    186,409.43/257,278.37 = 109,923.89/x
  3. Step 3: Cross multiply
    186,409.43x = 257,278.37 × 109,923.89
  4. Step 4: Simplify right side
    186,409.43x = 28,281,037,407.25
  5. Step 5: Solve for x
    x = 28,281,037,407.25/186,409.43
  6. Step 6: Final answer
    x = 151,714.63

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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.