Home / 148,163.12-204,054.82-128,013.56

Finding the Fourth Proportional to 148,163.12, 204,054.82 and 128,013.56

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Solution

The fourth proportional to 148,163.12, 204,054.82 and 128,013.56 is: 176,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,163.12 : 204,054.82 = 128,013.56 : x
  2. Step 2: Convert to fraction form
    148,163.12/204,054.82 = 128,013.56/x
  3. Step 3: Cross multiply
    148,163.12x = 204,054.82 × 128,013.56
  4. Step 4: Simplify right side
    148,163.12x = 26,121,782,603.05
  5. Step 5: Solve for x
    x = 26,121,782,603.05/148,163.12
  6. Step 6: Final answer
    x = 176,304.22

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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.