Home / 137,399.27-189,607.69-76,972.46

Finding the Fourth Proportional to 137,399.27, 189,607.69 and 76,972.46

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Solution

The fourth proportional to 137,399.27, 189,607.69 and 76,972.46 is: 106,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,399.27 : 189,607.69 = 76,972.46 : x
  2. Step 2: Convert to fraction form
    137,399.27/189,607.69 = 76,972.46/x
  3. Step 3: Cross multiply
    137,399.27x = 189,607.69 × 76,972.46
  4. Step 4: Simplify right side
    137,399.27x = 14,594,570,904.45
  5. Step 5: Solve for x
    x = 14,594,570,904.45/137,399.27
  6. Step 6: Final answer
    x = 106,220.15

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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.