Home / 136,940.10-205,426.15-43,455.30

Finding the Fourth Proportional to 136,940.10, 205,426.15 and 43,455.30

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Solution

The fourth proportional to 136,940.10, 205,426.15 and 43,455.30 is: 65,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,940.10 : 205,426.15 = 43,455.30 : x
  2. Step 2: Convert to fraction form
    136,940.10/205,426.15 = 43,455.30/x
  3. Step 3: Cross multiply
    136,940.10x = 205,426.15 × 43,455.30
  4. Step 4: Simplify right side
    136,940.10x = 8,926,854,976.10
  5. Step 5: Solve for x
    x = 8,926,854,976.10/136,940.10
  6. Step 6: Final answer
    x = 65,188.03

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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.