Home / 109,257.09-163,885.70-30,372

Finding the Fourth Proportional to 109,257.09, 163,885.70 and 30,372

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Solution

The fourth proportional to 109,257.09, 163,885.70 and 30,372 is: 45,558.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,257.09 : 163,885.70 = 30,372 : x
  2. Step 2: Convert to fraction form
    109,257.09/163,885.70 = 30,372/x
  3. Step 3: Cross multiply
    109,257.09x = 163,885.70 × 30,372
  4. Step 4: Simplify right side
    109,257.09x = 4,977,536,328.54
  5. Step 5: Solve for x
    x = 4,977,536,328.54/109,257.09
  6. Step 6: Final answer
    x = 45,558.02

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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.