Home / 211,520.45-317,070.43-106,017.41

Finding the Fourth Proportional to 211,520.45, 317,070.43 and 106,017.41

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Solution

The fourth proportional to 211,520.45, 317,070.43 and 106,017.41 is: 158,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,520.45 : 317,070.43 = 106,017.41 : x
  2. Step 2: Convert to fraction form
    211,520.45/317,070.43 = 106,017.41/x
  3. Step 3: Cross multiply
    211,520.45x = 317,070.43 × 106,017.41
  4. Step 4: Simplify right side
    211,520.45x = 33,614,985,776.19
  5. Step 5: Solve for x
    x = 33,614,985,776.19/211,520.45
  6. Step 6: Final answer
    x = 158,920.74

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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.