Home / 148,112.88-204,400.92-81,051.12

Finding the Fourth Proportional to 148,112.88, 204,400.92 and 81,051.12

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Solution

The fourth proportional to 148,112.88, 204,400.92 and 81,051.12 is: 111,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,112.88 : 204,400.92 = 81,051.12 : x
  2. Step 2: Convert to fraction form
    148,112.88/204,400.92 = 81,051.12/x
  3. Step 3: Cross multiply
    148,112.88x = 204,400.92 × 81,051.12
  4. Step 4: Simplify right side
    148,112.88x = 16,566,923,495.03
  5. Step 5: Solve for x
    x = 16,566,923,495.03/148,112.88
  6. Step 6: Final answer
    x = 111,853.36

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1.5x scale

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.