Home / 137,411.32-189,584.58-76,973.80

Finding the Fourth Proportional to 137,411.32, 189,584.58 and 76,973.80

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Solution

The fourth proportional to 137,411.32, 189,584.58 and 76,973.80 is: 106,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,411.32 : 189,584.58 = 76,973.80 : x
  2. Step 2: Convert to fraction form
    137,411.32/189,584.58 = 76,973.80/x
  3. Step 3: Cross multiply
    137,411.32x = 189,584.58 × 76,973.80
  4. Step 4: Simplify right side
    137,411.32x = 14,593,045,544.00
  5. Step 5: Solve for x
    x = 14,593,045,544.00/137,411.32
  6. Step 6: Final answer
    x = 106,199.73

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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.