Home / 92,521.86-138,637.41-71,513.34

Finding the Fourth Proportional to 92,521.86, 138,637.41 and 71,513.34

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Solution

The fourth proportional to 92,521.86, 138,637.41 and 71,513.34 is: 107,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,521.86 : 138,637.41 = 71,513.34 : x
  2. Step 2: Convert to fraction form
    92,521.86/138,637.41 = 71,513.34/x
  3. Step 3: Cross multiply
    92,521.86x = 138,637.41 × 71,513.34
  4. Step 4: Simplify right side
    92,521.86x = 9,914,424,238.05
  5. Step 5: Solve for x
    x = 9,914,424,238.05/92,521.86
  6. Step 6: Final answer
    x = 107,157.64

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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.