Home / 211,160.76-316,787.26-70,915.72

Finding the Fourth Proportional to 211,160.76, 316,787.26 and 70,915.72

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Solution

The fourth proportional to 211,160.76, 316,787.26 and 70,915.72 is: 106,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,160.76 : 316,787.26 = 70,915.72 : x
  2. Step 2: Convert to fraction form
    211,160.76/316,787.26 = 70,915.72/x
  3. Step 3: Cross multiply
    211,160.76x = 316,787.26 × 70,915.72
  4. Step 4: Simplify right side
    211,160.76x = 22,465,196,629.73
  5. Step 5: Solve for x
    x = 22,465,196,629.73/211,160.76
  6. Step 6: Final answer
    x = 106,389.07

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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.