Home / 105,634.83-145,777.22-57,887.16

Finding the Fourth Proportional to 105,634.83, 145,777.22 and 57,887.16

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Solution

The fourth proportional to 105,634.83, 145,777.22 and 57,887.16 is: 79,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,634.83 : 145,777.22 = 57,887.16 : x
  2. Step 2: Convert to fraction form
    105,634.83/145,777.22 = 57,887.16/x
  3. Step 3: Cross multiply
    105,634.83x = 145,777.22 × 57,887.16
  4. Step 4: Simplify right side
    105,634.83x = 8,438,628,639.47
  5. Step 5: Solve for x
    x = 8,438,628,639.47/105,634.83
  6. Step 6: Final answer
    x = 79,884.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.