Home / 102,887.21-154,336.75-39,707.66

Finding the Fourth Proportional to 102,887.21, 154,336.75 and 39,707.66

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Solution

The fourth proportional to 102,887.21, 154,336.75 and 39,707.66 is: 59,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,887.21 : 154,336.75 = 39,707.66 : x
  2. Step 2: Convert to fraction form
    102,887.21/154,336.75 = 39,707.66/x
  3. Step 3: Cross multiply
    102,887.21x = 154,336.75 × 39,707.66
  4. Step 4: Simplify right side
    102,887.21x = 6,128,350,422.82
  5. Step 5: Solve for x
    x = 6,128,350,422.82/102,887.21
  6. Step 6: Final answer
    x = 59,563.78

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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.