Home / 109,890.30-164,835.45-74,460.90

Finding the Fourth Proportional to 109,890.30, 164,835.45 and 74,460.90

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Solution

The fourth proportional to 109,890.30, 164,835.45 and 74,460.90 is: 111,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890.30 : 164,835.45 = 74,460.90 : x
  2. Step 2: Convert to fraction form
    109,890.30/164,835.45 = 74,460.90/x
  3. Step 3: Cross multiply
    109,890.30x = 164,835.45 × 74,460.90
  4. Step 4: Simplify right side
    109,890.30x = 12,273,795,958.91
  5. Step 5: Solve for x
    x = 12,273,795,958.91/109,890.30
  6. Step 6: Final answer
    x = 111,691.35

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1.5x scale

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.