Home / 127,918.40-191,860.32-34,429.76

Finding the Fourth Proportional to 127,918.40, 191,860.32 and 34,429.76

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Solution

The fourth proportional to 127,918.40, 191,860.32 and 34,429.76 is: 51,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,918.40 : 191,860.32 = 34,429.76 : x
  2. Step 2: Convert to fraction form
    127,918.40/191,860.32 = 34,429.76/x
  3. Step 3: Cross multiply
    127,918.40x = 191,860.32 × 34,429.76
  4. Step 4: Simplify right side
    127,918.40x = 6,605,704,771.12
  5. Step 5: Solve for x
    x = 6,605,704,771.12/127,918.40
  6. Step 6: Final answer
    x = 51,639.99

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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.