Home / 186,528.70-279,573.87-86,478.31

Finding the Fourth Proportional to 186,528.70, 279,573.87 and 86,478.31

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Solution

The fourth proportional to 186,528.70, 279,573.87 and 86,478.31 is: 129,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,528.70 : 279,573.87 = 86,478.31 : x
  2. Step 2: Convert to fraction form
    186,528.70/279,573.87 = 86,478.31/x
  3. Step 3: Cross multiply
    186,528.70x = 279,573.87 × 86,478.31
  4. Step 4: Simplify right side
    186,528.70x = 24,177,075,797.76
  5. Step 5: Solve for x
    x = 24,177,075,797.76/186,528.70
  6. Step 6: Final answer
    x = 129,615.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.