Home / 154,919.01-213,779.55-86,929.65

Finding the Fourth Proportional to 154,919.01, 213,779.55 and 86,929.65

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Solution

The fourth proportional to 154,919.01, 213,779.55 and 86,929.65 is: 119,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,919.01 : 213,779.55 = 86,929.65 : x
  2. Step 2: Convert to fraction form
    154,919.01/213,779.55 = 86,929.65/x
  3. Step 3: Cross multiply
    154,919.01x = 213,779.55 × 86,929.65
  4. Step 4: Simplify right side
    154,919.01x = 18,583,781,458.66
  5. Step 5: Solve for x
    x = 18,583,781,458.66/154,919.01
  6. Step 6: Final answer
    x = 119,958.04

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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.