Home / 186,775.19-280,065.51-66,785.89

Finding the Fourth Proportional to 186,775.19, 280,065.51 and 66,785.89

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Solution

The fourth proportional to 186,775.19, 280,065.51 and 66,785.89 is: 100,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,775.19 : 280,065.51 = 66,785.89 : x
  2. Step 2: Convert to fraction form
    186,775.19/280,065.51 = 66,785.89/x
  3. Step 3: Cross multiply
    186,775.19x = 280,065.51 × 66,785.89
  4. Step 4: Simplify right side
    186,775.19x = 18,704,424,343.65
  5. Step 5: Solve for x
    x = 18,704,424,343.65/186,775.19
  6. Step 6: Final answer
    x = 100,144.05

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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.