Home / 117,784.88-162,515.65-68,718.85

Finding the Fourth Proportional to 117,784.88, 162,515.65 and 68,718.85

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Solution

The fourth proportional to 117,784.88, 162,515.65 and 68,718.85 is: 94,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,784.88 : 162,515.65 = 68,718.85 : x
  2. Step 2: Convert to fraction form
    117,784.88/162,515.65 = 68,718.85/x
  3. Step 3: Cross multiply
    117,784.88x = 162,515.65 × 68,718.85
  4. Step 4: Simplify right side
    117,784.88x = 11,167,888,615.24
  5. Step 5: Solve for x
    x = 11,167,888,615.24/117,784.88
  6. Step 6: Final answer
    x = 94,815.98

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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.