Home / 112,857.21-169,307.93-41,780.43

Finding the Fourth Proportional to 112,857.21, 169,307.93 and 41,780.43

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Solution

The fourth proportional to 112,857.21, 169,307.93 and 41,780.43 is: 62,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,857.21 : 169,307.93 = 41,780.43 : x
  2. Step 2: Convert to fraction form
    112,857.21/169,307.93 = 41,780.43/x
  3. Step 3: Cross multiply
    112,857.21x = 169,307.93 × 41,780.43
  4. Step 4: Simplify right side
    112,857.21x = 7,073,758,065.58
  5. Step 5: Solve for x
    x = 7,073,758,065.58/112,857.21
  6. Step 6: Final answer
    x = 62,678.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.