Home / 75,160.16-112,746.64-19,756

Finding the Fourth Proportional to 75,160.16, 112,746.64 and 19,756

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Solution

The fourth proportional to 75,160.16, 112,746.64 and 19,756 is: 29,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,160.16 : 112,746.64 = 19,756 : x
  2. Step 2: Convert to fraction form
    75,160.16/112,746.64 = 19,756/x
  3. Step 3: Cross multiply
    75,160.16x = 112,746.64 × 19,756
  4. Step 4: Simplify right side
    75,160.16x = 2,227,422,619.84
  5. Step 5: Solve for x
    x = 2,227,422,619.84/75,160.16
  6. Step 6: Final answer
    x = 29,635.68

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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.