Home / 137,262.48-189,425.43-76,831.62

Finding the Fourth Proportional to 137,262.48, 189,425.43 and 76,831.62

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Solution

The fourth proportional to 137,262.48, 189,425.43 and 76,831.62 is: 106,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,262.48 : 189,425.43 = 76,831.62 : x
  2. Step 2: Convert to fraction form
    137,262.48/189,425.43 = 76,831.62/x
  3. Step 3: Cross multiply
    137,262.48x = 189,425.43 × 76,831.62
  4. Step 4: Simplify right side
    137,262.48x = 14,553,862,656.10
  5. Step 5: Solve for x
    x = 14,553,862,656.10/137,262.48
  6. Step 6: Final answer
    x = 106,029.43

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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.