Home / 137,262.11-189,424.91-76,831.25

Finding the Fourth Proportional to 137,262.11, 189,424.91 and 76,831.25

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Solution

The fourth proportional to 137,262.11, 189,424.91 and 76,831.25 is: 106,028.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,262.11 : 189,424.91 = 76,831.25 : x
  2. Step 2: Convert to fraction form
    137,262.11/189,424.91 = 76,831.25/x
  3. Step 3: Cross multiply
    137,262.11x = 189,424.91 × 76,831.25
  4. Step 4: Simplify right side
    137,262.11x = 14,553,751,861.39
  5. Step 5: Solve for x
    x = 14,553,751,861.39/137,262.11
  6. Step 6: Final answer
    x = 106,028.91

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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.