Home / 153,791.32-212,233.62-85,814.44

Finding the Fourth Proportional to 153,791.32, 212,233.62 and 85,814.44

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Solution

The fourth proportional to 153,791.32, 212,233.62 and 85,814.44 is: 118,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,791.32 : 212,233.62 = 85,814.44 : x
  2. Step 2: Convert to fraction form
    153,791.32/212,233.62 = 85,814.44/x
  3. Step 3: Cross multiply
    153,791.32x = 212,233.62 × 85,814.44
  4. Step 4: Simplify right side
    153,791.32x = 18,212,709,249.47
  5. Step 5: Solve for x
    x = 18,212,709,249.47/153,791.32
  6. Step 6: Final answer
    x = 118,424.82

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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.