Home / 154,067.74-212,605.71-86,071.21

Finding the Fourth Proportional to 154,067.74, 212,605.71 and 86,071.21

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Solution

The fourth proportional to 154,067.74, 212,605.71 and 86,071.21 is: 118,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,067.74 : 212,605.71 = 86,071.21 : x
  2. Step 2: Convert to fraction form
    154,067.74/212,605.71 = 86,071.21/x
  3. Step 3: Cross multiply
    154,067.74x = 212,605.71 × 86,071.21
  4. Step 4: Simplify right side
    154,067.74x = 18,299,230,712.61
  5. Step 5: Solve for x
    x = 18,299,230,712.61/154,067.74
  6. Step 6: Final answer
    x = 118,773.93

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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.