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Finding the Fourth Proportional to 144,691.53, 217,035.27 and 87,779.00

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Solution

The fourth proportional to 144,691.53, 217,035.27 and 87,779.00 is: 131,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,691.53 : 217,035.27 = 87,779.00 : x
  2. Step 2: Convert to fraction form
    144,691.53/217,035.27 = 87,779.00/x
  3. Step 3: Cross multiply
    144,691.53x = 217,035.27 × 87,779.00
  4. Step 4: Simplify right side
    144,691.53x = 19,051,137,880.15
  5. Step 5: Solve for x
    x = 19,051,137,880.15/144,691.53
  6. Step 6: Final answer
    x = 131,667.26

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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.