Home / 105,066-144,971.28-62,628.48

Finding the Fourth Proportional to 105,066, 144,971.28 and 62,628.48

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Solution

The fourth proportional to 105,066, 144,971.28 and 62,628.48 is: 86,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,066 : 144,971.28 = 62,628.48 : x
  2. Step 2: Convert to fraction form
    105,066/144,971.28 = 62,628.48/x
  3. Step 3: Cross multiply
    105,066x = 144,971.28 × 62,628.48
  4. Step 4: Simplify right side
    105,066x = 9,079,330,910.05
  5. Step 5: Solve for x
    x = 9,079,330,910.05/105,066
  6. Step 6: Final answer
    x = 86,415.50

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1.5x scale

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.