Home / 191,821.60-287,732.40-168,493.60

Finding the Fourth Proportional to 191,821.60, 287,732.40 and 168,493.60

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Solution

The fourth proportional to 191,821.60, 287,732.40 and 168,493.60 is: 252,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,821.60 : 287,732.40 = 168,493.60 : x
  2. Step 2: Convert to fraction form
    191,821.60/287,732.40 = 168,493.60/x
  3. Step 3: Cross multiply
    191,821.60x = 287,732.40 × 168,493.60
  4. Step 4: Simplify right side
    191,821.60x = 48,481,067,912.64
  5. Step 5: Solve for x
    x = 48,481,067,912.64/191,821.60
  6. Step 6: Final answer
    x = 252,740.40

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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.