Home / 117,915.08-162,714.59-66,928.85

Finding the Fourth Proportional to 117,915.08, 162,714.59 and 66,928.85

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Solution

The fourth proportional to 117,915.08, 162,714.59 and 66,928.85 is: 92,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,915.08 : 162,714.59 = 66,928.85 : x
  2. Step 2: Convert to fraction form
    117,915.08/162,714.59 = 66,928.85/x
  3. Step 3: Cross multiply
    117,915.08x = 162,714.59 × 66,928.85
  4. Step 4: Simplify right side
    117,915.08x = 10,890,300,386.92
  5. Step 5: Solve for x
    x = 10,890,300,386.92/117,915.08
  6. Step 6: Final answer
    x = 92,357.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.