Home / 186,278.74-257,070.34-131,928.28

Finding the Fourth Proportional to 186,278.74, 257,070.34 and 131,928.28

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Solution

The fourth proportional to 186,278.74, 257,070.34 and 131,928.28 is: 182,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,278.74 : 257,070.34 = 131,928.28 : x
  2. Step 2: Convert to fraction form
    186,278.74/257,070.34 = 131,928.28/x
  3. Step 3: Cross multiply
    186,278.74x = 257,070.34 × 131,928.28
  4. Step 4: Simplify right side
    186,278.74x = 33,914,847,795.22
  5. Step 5: Solve for x
    x = 33,914,847,795.22/186,278.74
  6. Step 6: Final answer
    x = 182,065.05

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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.