Home / 140,102.72-210,215.64-73,527.20

Finding the Fourth Proportional to 140,102.72, 210,215.64 and 73,527.20

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Solution

The fourth proportional to 140,102.72, 210,215.64 and 73,527.20 is: 110,323.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,102.72 : 210,215.64 = 73,527.20 : x
  2. Step 2: Convert to fraction form
    140,102.72/210,215.64 = 73,527.20/x
  3. Step 3: Cross multiply
    140,102.72x = 210,215.64 × 73,527.20
  4. Step 4: Simplify right side
    140,102.72x = 15,456,567,405.41
  5. Step 5: Solve for x
    x = 15,456,567,405.41/140,102.72
  6. Step 6: Final answer
    x = 110,323.11

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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.