Home / 104,727.06-157,238.21-75,128.76

Finding the Fourth Proportional to 104,727.06, 157,238.21 and 75,128.76

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Solution

The fourth proportional to 104,727.06, 157,238.21 and 75,128.76 is: 112,799.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,727.06 : 157,238.21 = 75,128.76 : x
  2. Step 2: Convert to fraction form
    104,727.06/157,238.21 = 75,128.76/x
  3. Step 3: Cross multiply
    104,727.06x = 157,238.21 × 75,128.76
  4. Step 4: Simplify right side
    104,727.06x = 11,813,111,929.74
  5. Step 5: Solve for x
    x = 11,813,111,929.74/104,727.06
  6. Step 6: Final answer
    x = 112,799.04

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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.