Home / 211,626.31-317,436.01-85,263.50

Finding the Fourth Proportional to 211,626.31, 317,436.01 and 85,263.50

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Solution

The fourth proportional to 211,626.31, 317,436.01 and 85,263.50 is: 127,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,626.31 : 317,436.01 = 85,263.50 : x
  2. Step 2: Convert to fraction form
    211,626.31/317,436.01 = 85,263.50/x
  3. Step 3: Cross multiply
    211,626.31x = 317,436.01 × 85,263.50
  4. Step 4: Simplify right side
    211,626.31x = 27,065,705,238.64
  5. Step 5: Solve for x
    x = 27,065,705,238.64/211,626.31
  6. Step 6: Final answer
    x = 127,893.86

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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.