Home / 105,871.36-146,102.73-58,127.79

Finding the Fourth Proportional to 105,871.36, 146,102.73 and 58,127.79

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Solution

The fourth proportional to 105,871.36, 146,102.73 and 58,127.79 is: 80,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,871.36 : 146,102.73 = 58,127.79 : x
  2. Step 2: Convert to fraction form
    105,871.36/146,102.73 = 58,127.79/x
  3. Step 3: Cross multiply
    105,871.36x = 146,102.73 × 58,127.79
  4. Step 4: Simplify right side
    105,871.36x = 8,492,628,807.87
  5. Step 5: Solve for x
    x = 8,492,628,807.87/105,871.36
  6. Step 6: Final answer
    x = 80,216.49

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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.