Home / 109,458.10-164,187.15-70,092.10

Finding the Fourth Proportional to 109,458.10, 164,187.15 and 70,092.10

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Solution

The fourth proportional to 109,458.10, 164,187.15 and 70,092.10 is: 105,138.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,458.10 : 164,187.15 = 70,092.10 : x
  2. Step 2: Convert to fraction form
    109,458.10/164,187.15 = 70,092.10/x
  3. Step 3: Cross multiply
    109,458.10x = 164,187.15 × 70,092.10
  4. Step 4: Simplify right side
    109,458.10x = 11,508,222,136.52
  5. Step 5: Solve for x
    x = 11,508,222,136.52/109,458.10
  6. Step 6: Final answer
    x = 105,138.15

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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.