Home / 154,922.67-213,744.56-86,929.65

Finding the Fourth Proportional to 154,922.67, 213,744.56 and 86,929.65

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Solution

The fourth proportional to 154,922.67, 213,744.56 and 86,929.65 is: 119,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,922.67 : 213,744.56 = 86,929.65 : x
  2. Step 2: Convert to fraction form
    154,922.67/213,744.56 = 86,929.65/x
  3. Step 3: Cross multiply
    154,922.67x = 213,744.56 × 86,929.65
  4. Step 4: Simplify right side
    154,922.67x = 18,580,739,355.56
  5. Step 5: Solve for x
    x = 18,580,739,355.56/154,922.67
  6. Step 6: Final answer
    x = 119,935.57

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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.