Home / 149,740.76-206,567.67-89,268.80

Finding the Fourth Proportional to 149,740.76, 206,567.67 and 89,268.80

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Solution

The fourth proportional to 149,740.76, 206,567.67 and 89,268.80 is: 123,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,740.76 : 206,567.67 = 89,268.80 : x
  2. Step 2: Convert to fraction form
    149,740.76/206,567.67 = 89,268.80/x
  3. Step 3: Cross multiply
    149,740.76x = 206,567.67 × 89,268.80
  4. Step 4: Simplify right side
    149,740.76x = 18,440,046,986.86
  5. Step 5: Solve for x
    x = 18,440,046,986.86/149,740.76
  6. Step 6: Final answer
    x = 123,146.47

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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.