Home / 97,921.86-135,173.50-66,133.82

Finding the Fourth Proportional to 97,921.86, 135,173.50 and 66,133.82

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Solution

The fourth proportional to 97,921.86, 135,173.50 and 66,133.82 is: 91,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,921.86 : 135,173.50 = 66,133.82 : x
  2. Step 2: Convert to fraction form
    97,921.86/135,173.50 = 66,133.82/x
  3. Step 3: Cross multiply
    97,921.86x = 135,173.50 × 66,133.82
  4. Step 4: Simplify right side
    97,921.86x = 8,939,539,241.90
  5. Step 5: Solve for x
    x = 8,939,539,241.90/97,921.86
  6. Step 6: Final answer
    x = 91,292.58

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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.