Home / 105,736.54-145,918.30-57,989.46

Finding the Fourth Proportional to 105,736.54, 145,918.30 and 57,989.46

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Solution

The fourth proportional to 105,736.54, 145,918.30 and 57,989.46 is: 80,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,736.54 : 145,918.30 = 57,989.46 : x
  2. Step 2: Convert to fraction form
    105,736.54/145,918.30 = 57,989.46/x
  3. Step 3: Cross multiply
    105,736.54x = 145,918.30 × 57,989.46
  4. Step 4: Simplify right side
    105,736.54x = 8,461,723,421.12
  5. Step 5: Solve for x
    x = 8,461,723,421.12/105,736.54
  6. Step 6: Final answer
    x = 80,026.48

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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.