Home / 136,637.22-203,597.47-121,731.60

Finding the Fourth Proportional to 136,637.22, 203,597.47 and 121,731.60

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Solution

The fourth proportional to 136,637.22, 203,597.47 and 121,731.60 is: 181,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,637.22 : 203,597.47 = 121,731.60 : x
  2. Step 2: Convert to fraction form
    136,637.22/203,597.47 = 121,731.60/x
  3. Step 3: Cross multiply
    136,637.22x = 203,597.47 × 121,731.60
  4. Step 4: Simplify right side
    136,637.22x = 24,784,245,779.05
  5. Step 5: Solve for x
    x = 24,784,245,779.05/136,637.22
  6. Step 6: Final answer
    x = 181,387.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.