Home / 137,010.04-189,049.26-76,581.88

Finding the Fourth Proportional to 137,010.04, 189,049.26 and 76,581.88

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Solution

The fourth proportional to 137,010.04, 189,049.26 and 76,581.88 is: 105,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,010.04 : 189,049.26 = 76,581.88 : x
  2. Step 2: Convert to fraction form
    137,010.04/189,049.26 = 76,581.88/x
  3. Step 3: Cross multiply
    137,010.04x = 189,049.26 × 76,581.88
  4. Step 4: Simplify right side
    137,010.04x = 14,477,747,743.41
  5. Step 5: Solve for x
    x = 14,477,747,743.41/137,010.04
  6. Step 6: Final answer
    x = 105,669.25

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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.