Home / 105,734.96-145,914.28-57,989.32

Finding the Fourth Proportional to 105,734.96, 145,914.28 and 57,989.32

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Solution

The fourth proportional to 105,734.96, 145,914.28 and 57,989.32 is: 80,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,734.96 : 145,914.28 = 57,989.32 : x
  2. Step 2: Convert to fraction form
    105,734.96/145,914.28 = 57,989.32/x
  3. Step 3: Cross multiply
    105,734.96x = 145,914.28 × 57,989.32
  4. Step 4: Simplify right side
    105,734.96x = 8,461,469,875.49
  5. Step 5: Solve for x
    x = 8,461,469,875.49/105,734.96
  6. Step 6: Final answer
    x = 80,025.28

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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.