Home / 137,183.31-189,302.63-76,742.83

Finding the Fourth Proportional to 137,183.31, 189,302.63 and 76,742.83

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Solution

The fourth proportional to 137,183.31, 189,302.63 and 76,742.83 is: 105,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,183.31 : 189,302.63 = 76,742.83 : x
  2. Step 2: Convert to fraction form
    137,183.31/189,302.63 = 76,742.83/x
  3. Step 3: Cross multiply
    137,183.31x = 189,302.63 × 76,742.83
  4. Step 4: Simplify right side
    137,183.31x = 14,527,619,552.64
  5. Step 5: Solve for x
    x = 14,527,619,552.64/137,183.31
  6. Step 6: Final answer
    x = 105,899.32

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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.