Home / 211,104.29-316,822.85-78,022.60

Finding the Fourth Proportional to 211,104.29, 316,822.85 and 78,022.60

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Solution

The fourth proportional to 211,104.29, 316,822.85 and 78,022.60 is: 117,095.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,104.29 : 316,822.85 = 78,022.60 : x
  2. Step 2: Convert to fraction form
    211,104.29/316,822.85 = 78,022.60/x
  3. Step 3: Cross multiply
    211,104.29x = 316,822.85 × 78,022.60
  4. Step 4: Simplify right side
    211,104.29x = 24,719,342,106.30
  5. Step 5: Solve for x
    x = 24,719,342,106.30/211,104.29
  6. Step 6: Final answer
    x = 117,095.41

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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.