Home / 117,904.31-162,711.43-66,915.92

Finding the Fourth Proportional to 117,904.31, 162,711.43 and 66,915.92

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Solution

The fourth proportional to 117,904.31, 162,711.43 and 66,915.92 is: 92,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,904.31 : 162,711.43 = 66,915.92 : x
  2. Step 2: Convert to fraction form
    117,904.31/162,711.43 = 66,915.92/x
  3. Step 3: Cross multiply
    117,904.31x = 162,711.43 × 66,915.92
  4. Step 4: Simplify right side
    117,904.31x = 10,887,985,648.86
  5. Step 5: Solve for x
    x = 10,887,985,648.86/117,904.31
  6. Step 6: Final answer
    x = 92,345.95

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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.