Home / 109,719.30-164,578.95-92,004.60

Finding the Fourth Proportional to 109,719.30, 164,578.95 and 92,004.60

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Solution

The fourth proportional to 109,719.30, 164,578.95 and 92,004.60 is: 138,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,719.30 : 164,578.95 = 92,004.60 : x
  2. Step 2: Convert to fraction form
    109,719.30/164,578.95 = 92,004.60/x
  3. Step 3: Cross multiply
    109,719.30x = 164,578.95 × 92,004.60
  4. Step 4: Simplify right side
    109,719.30x = 15,142,020,463.17
  5. Step 5: Solve for x
    x = 15,142,020,463.17/109,719.30
  6. Step 6: Final answer
    x = 138,006.90

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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.