Home / 109,870.20-164,586.60-57,309.30

Finding the Fourth Proportional to 109,870.20, 164,586.60 and 57,309.30

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Solution

The fourth proportional to 109,870.20, 164,586.60 and 57,309.30 is: 85,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,870.20 : 164,586.60 = 57,309.30 : x
  2. Step 2: Convert to fraction form
    109,870.20/164,586.60 = 57,309.30/x
  3. Step 3: Cross multiply
    109,870.20x = 164,586.60 × 57,309.30
  4. Step 4: Simplify right side
    109,870.20x = 9,432,342,835.38
  5. Step 5: Solve for x
    x = 9,432,342,835.38/109,870.20
  6. Step 6: Final answer
    x = 85,849.87

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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.