Home / 132,421.20-198,631.80-122,701.20

Finding the Fourth Proportional to 132,421.20, 198,631.80 and 122,701.20

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Solution

The fourth proportional to 132,421.20, 198,631.80 and 122,701.20 is: 184,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,421.20 : 198,631.80 = 122,701.20 : x
  2. Step 2: Convert to fraction form
    132,421.20/198,631.80 = 122,701.20/x
  3. Step 3: Cross multiply
    132,421.20x = 198,631.80 × 122,701.20
  4. Step 4: Simplify right side
    132,421.20x = 24,372,360,218.16
  5. Step 5: Solve for x
    x = 24,372,360,218.16/132,421.20
  6. Step 6: Final answer
    x = 184,051.80

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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.