Home / 154,926.30-213,749.55-86,933.28

Finding the Fourth Proportional to 154,926.30, 213,749.55 and 86,933.28

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Solution

The fourth proportional to 154,926.30, 213,749.55 and 86,933.28 is: 119,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,926.30 : 213,749.55 = 86,933.28 : x
  2. Step 2: Convert to fraction form
    154,926.30/213,749.55 = 86,933.28/x
  3. Step 3: Cross multiply
    154,926.30x = 213,749.55 × 86,933.28
  4. Step 4: Simplify right side
    154,926.30x = 18,581,949,480.02
  5. Step 5: Solve for x
    x = 18,581,949,480.02/154,926.30
  6. Step 6: Final answer
    x = 119,940.57

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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.