Home / 132,437.42-197,408.53-121,808.60

Finding the Fourth Proportional to 132,437.42, 197,408.53 and 121,808.60

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Solution

The fourth proportional to 132,437.42, 197,408.53 and 121,808.60 is: 181,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,437.42 : 197,408.53 = 121,808.60 : x
  2. Step 2: Convert to fraction form
    132,437.42/197,408.53 = 121,808.60/x
  3. Step 3: Cross multiply
    132,437.42x = 197,408.53 × 121,808.60
  4. Step 4: Simplify right side
    132,437.42x = 24,046,056,021.58
  5. Step 5: Solve for x
    x = 24,046,056,021.58/132,437.42
  6. Step 6: Final answer
    x = 181,565.43

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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.