Home / 144,041.04-215,956.56-68,112.72

Finding the Fourth Proportional to 144,041.04, 215,956.56 and 68,112.72

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Solution

The fourth proportional to 144,041.04, 215,956.56 and 68,112.72 is: 102,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,041.04 : 215,956.56 = 68,112.72 : x
  2. Step 2: Convert to fraction form
    144,041.04/215,956.56 = 68,112.72/x
  3. Step 3: Cross multiply
    144,041.04x = 215,956.56 × 68,112.72
  4. Step 4: Simplify right side
    144,041.04x = 14,709,388,703.44
  5. Step 5: Solve for x
    x = 14,709,388,703.44/144,041.04
  6. Step 6: Final answer
    x = 102,119.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.