Home / 129,828.25-194,742.38-31,332.25

Finding the Fourth Proportional to 129,828.25, 194,742.38 and 31,332.25

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Solution

The fourth proportional to 129,828.25, 194,742.38 and 31,332.25 is: 46,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.25 : 194,742.38 = 31,332.25 : x
  2. Step 2: Convert to fraction form
    129,828.25/194,742.38 = 31,332.25/x
  3. Step 3: Cross multiply
    129,828.25x = 194,742.38 × 31,332.25
  4. Step 4: Simplify right side
    129,828.25x = 6,101,716,935.76
  5. Step 5: Solve for x
    x = 6,101,716,935.76/129,828.25
  6. Step 6: Final answer
    x = 46,998.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.