Home / 212,511.80-318,567.33-105,794.91

Finding the Fourth Proportional to 212,511.80, 318,567.33 and 105,794.91

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Solution

The fourth proportional to 212,511.80, 318,567.33 and 105,794.91 is: 158,592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,511.80 : 318,567.33 = 105,794.91 : x
  2. Step 2: Convert to fraction form
    212,511.80/318,567.33 = 105,794.91/x
  3. Step 3: Cross multiply
    212,511.80x = 318,567.33 × 105,794.91
  4. Step 4: Simplify right side
    212,511.80x = 33,702,802,006.29
  5. Step 5: Solve for x
    x = 33,702,802,006.29/212,511.80
  6. Step 6: Final answer
    x = 158,592.61

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1.5x scale

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.