Home / 211,106.29-316,825.85-78,024.60

Finding the Fourth Proportional to 211,106.29, 316,825.85 and 78,024.60

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Solution

The fourth proportional to 211,106.29, 316,825.85 and 78,024.60 is: 117,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,106.29 : 316,825.85 = 78,024.60 : x
  2. Step 2: Convert to fraction form
    211,106.29/316,825.85 = 78,024.60/x
  3. Step 3: Cross multiply
    211,106.29x = 316,825.85 × 78,024.60
  4. Step 4: Simplify right side
    211,106.29x = 24,720,210,215.91
  5. Step 5: Solve for x
    x = 24,720,210,215.91/211,106.29
  6. Step 6: Final answer
    x = 117,098.41

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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.