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Finding the Fourth Proportional to 137,332.17, 189,502.73 and 76,894.41

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Solution

The fourth proportional to 137,332.17, 189,502.73 and 76,894.41 is: 106,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,332.17 : 189,502.73 = 76,894.41 : x
  2. Step 2: Convert to fraction form
    137,332.17/189,502.73 = 76,894.41/x
  3. Step 3: Cross multiply
    137,332.17x = 189,502.73 × 76,894.41
  4. Step 4: Simplify right side
    137,332.17x = 14,571,700,616.74
  5. Step 5: Solve for x
    x = 14,571,700,616.74/137,332.17
  6. Step 6: Final answer
    x = 106,105.51

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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.