Home / 112,078.47-168,084.90-92,307.99

Finding the Fourth Proportional to 112,078.47, 168,084.90 and 92,307.99

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Solution

The fourth proportional to 112,078.47, 168,084.90 and 92,307.99 is: 138,434.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.47 : 168,084.90 = 92,307.99 : x
  2. Step 2: Convert to fraction form
    112,078.47/168,084.90 = 92,307.99/x
  3. Step 3: Cross multiply
    112,078.47x = 168,084.90 × 92,307.99
  4. Step 4: Simplify right side
    112,078.47x = 15,515,579,268.35
  5. Step 5: Solve for x
    x = 15,515,579,268.35/112,078.47
  6. Step 6: Final answer
    x = 138,434.97

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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.