Home / 109,689.20-164,549.88-34,784.36

Finding the Fourth Proportional to 109,689.20, 164,549.88 and 34,784.36

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Solution

The fourth proportional to 109,689.20, 164,549.88 and 34,784.36 is: 52,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,689.20 : 164,549.88 = 34,784.36 : x
  2. Step 2: Convert to fraction form
    109,689.20/164,549.88 = 34,784.36/x
  3. Step 3: Cross multiply
    109,689.20x = 164,549.88 × 34,784.36
  4. Step 4: Simplify right side
    109,689.20x = 5,723,762,263.88
  5. Step 5: Solve for x
    x = 5,723,762,263.88/109,689.20
  6. Step 6: Final answer
    x = 52,181.64

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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.