Home / 137,383.09-189,616.34-93,891.76

Finding the Fourth Proportional to 137,383.09, 189,616.34 and 93,891.76

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Solution

The fourth proportional to 137,383.09, 189,616.34 and 93,891.76 is: 129,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,383.09 : 189,616.34 = 93,891.76 : x
  2. Step 2: Convert to fraction form
    137,383.09/189,616.34 = 93,891.76/x
  3. Step 3: Cross multiply
    137,383.09x = 189,616.34 × 93,891.76
  4. Step 4: Simplify right side
    137,383.09x = 17,803,411,648.05
  5. Step 5: Solve for x
    x = 17,803,411,648.05/137,383.09
  6. Step 6: Final answer
    x = 129,589.54

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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.