Home / 154,911.24-213,793.90-86,946.57

Finding the Fourth Proportional to 154,911.24, 213,793.90 and 86,946.57

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Solution

The fourth proportional to 154,911.24, 213,793.90 and 86,946.57 is: 119,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,911.24 : 213,793.90 = 86,946.57 : x
  2. Step 2: Convert to fraction form
    154,911.24/213,793.90 = 86,946.57/x
  3. Step 3: Cross multiply
    154,911.24x = 213,793.90 × 86,946.57
  4. Step 4: Simplify right side
    154,911.24x = 18,588,646,074.56
  5. Step 5: Solve for x
    x = 18,588,646,074.56/154,911.24
  6. Step 6: Final answer
    x = 119,995.46

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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.