Home / 109,638.20-164,356.50-39,500.36

Finding the Fourth Proportional to 109,638.20, 164,356.50 and 39,500.36

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Solution

The fourth proportional to 109,638.20, 164,356.50 and 39,500.36 is: 59,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,638.20 : 164,356.50 = 39,500.36 : x
  2. Step 2: Convert to fraction form
    109,638.20/164,356.50 = 39,500.36/x
  3. Step 3: Cross multiply
    109,638.20x = 164,356.50 × 39,500.36
  4. Step 4: Simplify right side
    109,638.20x = 6,492,140,918.34
  5. Step 5: Solve for x
    x = 6,492,140,918.34/109,638.20
  6. Step 6: Final answer
    x = 59,214.22

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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.