Home / 107,178.12-147,954.60-68,955.84

Finding the Fourth Proportional to 107,178.12, 147,954.60 and 68,955.84

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Solution

The fourth proportional to 107,178.12, 147,954.60 and 68,955.84 is: 95,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,178.12 : 147,954.60 = 68,955.84 : x
  2. Step 2: Convert to fraction form
    107,178.12/147,954.60 = 68,955.84/x
  3. Step 3: Cross multiply
    107,178.12x = 147,954.60 × 68,955.84
  4. Step 4: Simplify right side
    107,178.12x = 10,202,333,724.86
  5. Step 5: Solve for x
    x = 10,202,333,724.86/107,178.12
  6. Step 6: Final answer
    x = 95,190.45

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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.