Home / 186,119.16-256,836.66-109,641.39

Finding the Fourth Proportional to 186,119.16, 256,836.66 and 109,641.39

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Solution

The fourth proportional to 186,119.16, 256,836.66 and 109,641.39 is: 151,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,119.16 : 256,836.66 = 109,641.39 : x
  2. Step 2: Convert to fraction form
    186,119.16/256,836.66 = 109,641.39/x
  3. Step 3: Cross multiply
    186,119.16x = 256,836.66 × 109,641.39
  4. Step 4: Simplify right side
    186,119.16x = 28,159,928,405.36
  5. Step 5: Solve for x
    x = 28,159,928,405.36/186,119.16
  6. Step 6: Final answer
    x = 151,300.53

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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.