Home / 211,848.07-317,767.98-85,484.96

Finding the Fourth Proportional to 211,848.07, 317,767.98 and 85,484.96

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Solution

The fourth proportional to 211,848.07, 317,767.98 and 85,484.96 is: 128,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,848.07 : 317,767.98 = 85,484.96 : x
  2. Step 2: Convert to fraction form
    211,848.07/317,767.98 = 85,484.96/x
  3. Step 3: Cross multiply
    211,848.07x = 317,767.98 × 85,484.96
  4. Step 4: Simplify right side
    211,848.07x = 27,164,383,059.58
  5. Step 5: Solve for x
    x = 27,164,383,059.58/211,848.07
  6. Step 6: Final answer
    x = 128,225.78

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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.