Home / 112,836.48-155,713.44-61,849.40

Finding the Fourth Proportional to 112,836.48, 155,713.44 and 61,849.40

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Solution

The fourth proportional to 112,836.48, 155,713.44 and 61,849.40 is: 85,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,836.48 : 155,713.44 = 61,849.40 : x
  2. Step 2: Convert to fraction form
    112,836.48/155,713.44 = 61,849.40/x
  3. Step 3: Cross multiply
    112,836.48x = 155,713.44 × 61,849.40
  4. Step 4: Simplify right side
    112,836.48x = 9,630,782,835.94
  5. Step 5: Solve for x
    x = 9,630,782,835.94/112,836.48
  6. Step 6: Final answer
    x = 85,351.68

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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.