Home / 154,838.88-213,665.40-86,846.76

Finding the Fourth Proportional to 154,838.88, 213,665.40 and 86,846.76

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Solution

The fourth proportional to 154,838.88, 213,665.40 and 86,846.76 is: 119,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,838.88 : 213,665.40 = 86,846.76 : x
  2. Step 2: Convert to fraction form
    154,838.88/213,665.40 = 86,846.76/x
  3. Step 3: Cross multiply
    154,838.88x = 213,665.40 × 86,846.76
  4. Step 4: Simplify right side
    154,838.88x = 18,556,147,714.10
  5. Step 5: Solve for x
    x = 18,556,147,714.10/154,838.88
  6. Step 6: Final answer
    x = 119,841.66

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1.5x scale

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.