Home / 154,031.98-212,556.52-86,035.42

Finding the Fourth Proportional to 154,031.98, 212,556.52 and 86,035.42

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Solution

The fourth proportional to 154,031.98, 212,556.52 and 86,035.42 is: 118,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,031.98 : 212,556.52 = 86,035.42 : x
  2. Step 2: Convert to fraction form
    154,031.98/212,556.52 = 86,035.42/x
  3. Step 3: Cross multiply
    154,031.98x = 212,556.52 × 86,035.42
  4. Step 4: Simplify right side
    154,031.98x = 18,287,389,471.94
  5. Step 5: Solve for x
    x = 18,287,389,471.94/154,031.98
  6. Step 6: Final answer
    x = 118,724.63

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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.