Home / 154,590.66-213,333.14-86,606.42

Finding the Fourth Proportional to 154,590.66, 213,333.14 and 86,606.42

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Solution

The fourth proportional to 154,590.66, 213,333.14 and 86,606.42 is: 119,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,590.66 : 213,333.14 = 86,606.42 : x
  2. Step 2: Convert to fraction form
    154,590.66/213,333.14 = 86,606.42/x
  3. Step 3: Cross multiply
    154,590.66x = 213,333.14 × 86,606.42
  4. Step 4: Simplify right side
    154,590.66x = 18,476,018,672.61
  5. Step 5: Solve for x
    x = 18,476,018,672.61/154,590.66
  6. Step 6: Final answer
    x = 119,515.75

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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.