Home / 148,703.26-205,204.93-80,718.77

Finding the Fourth Proportional to 148,703.26, 205,204.93 and 80,718.77

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Solution

The fourth proportional to 148,703.26, 205,204.93 and 80,718.77 is: 111,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,703.26 : 205,204.93 = 80,718.77 : x
  2. Step 2: Convert to fraction form
    148,703.26/205,204.93 = 80,718.77/x
  3. Step 3: Cross multiply
    148,703.26x = 205,204.93 × 80,718.77
  4. Step 4: Simplify right side
    148,703.26x = 16,563,889,858.75
  5. Step 5: Solve for x
    x = 16,563,889,858.75/148,703.26
  6. Step 6: Final answer
    x = 111,388.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.