Home / 109,383.90-164,205.45-108,606.30

Finding the Fourth Proportional to 109,383.90, 164,205.45 and 108,606.30

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Solution

The fourth proportional to 109,383.90, 164,205.45 and 108,606.30 is: 163,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,383.90 : 164,205.45 = 108,606.30 : x
  2. Step 2: Convert to fraction form
    109,383.90/164,205.45 = 108,606.30/x
  3. Step 3: Cross multiply
    109,383.90x = 164,205.45 × 108,606.30
  4. Step 4: Simplify right side
    109,383.90x = 17,833,746,364.34
  5. Step 5: Solve for x
    x = 17,833,746,364.34/109,383.90
  6. Step 6: Final answer
    x = 163,038.13

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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.