Home / 145,051.01-217,576.22-81,842.44

Finding the Fourth Proportional to 145,051.01, 217,576.22 and 81,842.44

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Solution

The fourth proportional to 145,051.01, 217,576.22 and 81,842.44 is: 122,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,051.01 : 217,576.22 = 81,842.44 : x
  2. Step 2: Convert to fraction form
    145,051.01/217,576.22 = 81,842.44/x
  3. Step 3: Cross multiply
    145,051.01x = 217,576.22 × 81,842.44
  4. Step 4: Simplify right side
    145,051.01x = 17,806,968,730.78
  5. Step 5: Solve for x
    x = 17,806,968,730.78/145,051.01
  6. Step 6: Final answer
    x = 122,763.49

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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.