Home / 135,331.02-203,021.28-45,364.86

Finding the Fourth Proportional to 135,331.02, 203,021.28 and 45,364.86

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Solution

The fourth proportional to 135,331.02, 203,021.28 and 45,364.86 is: 68,055.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,331.02 : 203,021.28 = 45,364.86 : x
  2. Step 2: Convert to fraction form
    135,331.02/203,021.28 = 45,364.86/x
  3. Step 3: Cross multiply
    135,331.02x = 203,021.28 × 45,364.86
  4. Step 4: Simplify right side
    135,331.02x = 9,210,031,944.22
  5. Step 5: Solve for x
    x = 9,210,031,944.22/135,331.02
  6. Step 6: Final answer
    x = 68,055.59

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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.