Home / 211,718.76-317,162.94-122,785.50

Finding the Fourth Proportional to 211,718.76, 317,162.94 and 122,785.50

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Solution

The fourth proportional to 211,718.76, 317,162.94 and 122,785.50 is: 183,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,718.76 : 317,162.94 = 122,785.50 : x
  2. Step 2: Convert to fraction form
    211,718.76/317,162.94 = 122,785.50/x
  3. Step 3: Cross multiply
    211,718.76x = 317,162.94 × 122,785.50
  4. Step 4: Simplify right side
    211,718.76x = 38,943,010,169.37
  5. Step 5: Solve for x
    x = 38,943,010,169.37/211,718.76
  6. Step 6: Final answer
    x = 183,937.46

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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.