Home / 137,394.97-189,602.24-76,140.64

Finding the Fourth Proportional to 137,394.97, 189,602.24 and 76,140.64

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Solution

The fourth proportional to 137,394.97, 189,602.24 and 76,140.64 is: 105,072.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,394.97 : 189,602.24 = 76,140.64 : x
  2. Step 2: Convert to fraction form
    137,394.97/189,602.24 = 76,140.64/x
  3. Step 3: Cross multiply
    137,394.97x = 189,602.24 × 76,140.64
  4. Step 4: Simplify right side
    137,394.97x = 14,436,435,755.33
  5. Step 5: Solve for x
    x = 14,436,435,755.33/137,394.97
  6. Step 6: Final answer
    x = 105,072.52

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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.