Home / 99,485.58-137,289.26-54,163.45

Finding the Fourth Proportional to 99,485.58, 137,289.26 and 54,163.45

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Solution

The fourth proportional to 99,485.58, 137,289.26 and 54,163.45 is: 74,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,485.58 : 137,289.26 = 54,163.45 : x
  2. Step 2: Convert to fraction form
    99,485.58/137,289.26 = 54,163.45/x
  3. Step 3: Cross multiply
    99,485.58x = 137,289.26 × 54,163.45
  4. Step 4: Simplify right side
    99,485.58x = 7,436,060,276.57
  5. Step 5: Solve for x
    x = 7,436,060,276.57/99,485.58
  6. Step 6: Final answer
    x = 74,745.10

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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.