Home / 211,006.40-316,512.80-68,851.04

Finding the Fourth Proportional to 211,006.40, 316,512.80 and 68,851.04

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Solution

The fourth proportional to 211,006.40, 316,512.80 and 68,851.04 is: 103,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,006.40 : 316,512.80 = 68,851.04 : x
  2. Step 2: Convert to fraction form
    211,006.40/316,512.80 = 68,851.04/x
  3. Step 3: Cross multiply
    211,006.40x = 316,512.80 × 68,851.04
  4. Step 4: Simplify right side
    211,006.40x = 21,792,235,453.31
  5. Step 5: Solve for x
    x = 21,792,235,453.31/211,006.40
  6. Step 6: Final answer
    x = 103,277.60

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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.