Home / 148,960.37-205,566.65-80,977.47

Finding the Fourth Proportional to 148,960.37, 205,566.65 and 80,977.47

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Solution

The fourth proportional to 148,960.37, 205,566.65 and 80,977.47 is: 111,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,960.37 : 205,566.65 = 80,977.47 : x
  2. Step 2: Convert to fraction form
    148,960.37/205,566.65 = 80,977.47/x
  3. Step 3: Cross multiply
    148,960.37x = 205,566.65 × 80,977.47
  4. Step 4: Simplify right side
    148,960.37x = 16,646,266,828.49
  5. Step 5: Solve for x
    x = 16,646,266,828.49/148,960.37
  6. Step 6: Final answer
    x = 111,749.64

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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.