Home / 135,502.45-203,213.16-40,707.28

Finding the Fourth Proportional to 135,502.45, 203,213.16 and 40,707.28

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Solution

The fourth proportional to 135,502.45, 203,213.16 and 40,707.28 is: 61,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,502.45 : 203,213.16 = 40,707.28 : x
  2. Step 2: Convert to fraction form
    135,502.45/203,213.16 = 40,707.28/x
  3. Step 3: Cross multiply
    135,502.45x = 203,213.16 × 40,707.28
  4. Step 4: Simplify right side
    135,502.45x = 8,272,253,987.74
  5. Step 5: Solve for x
    x = 8,272,253,987.74/135,502.45
  6. Step 6: Final answer
    x = 61,048.74

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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.