Home / 154,840.88-213,668.16-86,848.76

Finding the Fourth Proportional to 154,840.88, 213,668.16 and 86,848.76

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Solution

The fourth proportional to 154,840.88, 213,668.16 and 86,848.76 is: 119,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,840.88 : 213,668.16 = 86,848.76 : x
  2. Step 2: Convert to fraction form
    154,840.88/213,668.16 = 86,848.76/x
  3. Step 3: Cross multiply
    154,840.88x = 213,668.16 × 86,848.76
  4. Step 4: Simplify right side
    154,840.88x = 18,556,814,747.48
  5. Step 5: Solve for x
    x = 18,556,814,747.48/154,840.88
  6. Step 6: Final answer
    x = 119,844.42

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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.