Home / 137,266.98-189,431.64-76,836.12

Finding the Fourth Proportional to 137,266.98, 189,431.64 and 76,836.12

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Solution

The fourth proportional to 137,266.98, 189,431.64 and 76,836.12 is: 106,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,266.98 : 189,431.64 = 76,836.12 : x
  2. Step 2: Convert to fraction form
    137,266.98/189,431.64 = 76,836.12/x
  3. Step 3: Cross multiply
    137,266.98x = 189,431.64 × 76,836.12
  4. Step 4: Simplify right side
    137,266.98x = 14,555,192,222.84
  5. Step 5: Solve for x
    x = 14,555,192,222.84/137,266.98
  6. Step 6: Final answer
    x = 106,035.64

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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.