Home / 109,553.02-164,397.56-70,138.42

Finding the Fourth Proportional to 109,553.02, 164,397.56 and 70,138.42

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Solution

The fourth proportional to 109,553.02, 164,397.56 and 70,138.42 is: 105,251.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,553.02 : 164,397.56 = 70,138.42 : x
  2. Step 2: Convert to fraction form
    109,553.02/164,397.56 = 70,138.42/x
  3. Step 3: Cross multiply
    109,553.02x = 164,397.56 × 70,138.42
  4. Step 4: Simplify right side
    109,553.02x = 11,530,585,110.26
  5. Step 5: Solve for x
    x = 11,530,585,110.26/109,553.02
  6. Step 6: Final answer
    x = 105,251.18

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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.