Home / 107,548.79-161,319.54-40,986.50

Finding the Fourth Proportional to 107,548.79, 161,319.54 and 40,986.50

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Solution

The fourth proportional to 107,548.79, 161,319.54 and 40,986.50 is: 61,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,548.79 : 161,319.54 = 40,986.50 : x
  2. Step 2: Convert to fraction form
    107,548.79/161,319.54 = 40,986.50/x
  3. Step 3: Cross multiply
    107,548.79x = 161,319.54 × 40,986.50
  4. Step 4: Simplify right side
    107,548.79x = 6,611,923,326.21
  5. Step 5: Solve for x
    x = 6,611,923,326.21/107,548.79
  6. Step 6: Final answer
    x = 61,478.36

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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.