Home / 137,163.20-189,302.64-76,737.20

Finding the Fourth Proportional to 137,163.20, 189,302.64 and 76,737.20

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Solution

The fourth proportional to 137,163.20, 189,302.64 and 76,737.20 is: 105,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,163.20 : 189,302.64 = 76,737.20 : x
  2. Step 2: Convert to fraction form
    137,163.20/189,302.64 = 76,737.20/x
  3. Step 3: Cross multiply
    137,163.20x = 189,302.64 × 76,737.20
  4. Step 4: Simplify right side
    137,163.20x = 14,526,554,546.21
  5. Step 5: Solve for x
    x = 14,526,554,546.21/137,163.20
  6. Step 6: Final answer
    x = 105,907.08

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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.