Home / 109,748.40-164,629.80-30,865.20

Finding the Fourth Proportional to 109,748.40, 164,629.80 and 30,865.20

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Solution

The fourth proportional to 109,748.40, 164,629.80 and 30,865.20 is: 46,299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,748.40 : 164,629.80 = 30,865.20 : x
  2. Step 2: Convert to fraction form
    109,748.40/164,629.80 = 30,865.20/x
  3. Step 3: Cross multiply
    109,748.40x = 164,629.80 × 30,865.20
  4. Step 4: Simplify right side
    109,748.40x = 5,081,331,702.96
  5. Step 5: Solve for x
    x = 5,081,331,702.96/109,748.40
  6. Step 6: Final answer
    x = 46,299.82

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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.