Home / 92,507.41-138,091.74-81,297.62

Finding the Fourth Proportional to 92,507.41, 138,091.74 and 81,297.62

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Solution

The fourth proportional to 92,507.41, 138,091.74 and 81,297.62 is: 121,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.41 : 138,091.74 = 81,297.62 : x
  2. Step 2: Convert to fraction form
    92,507.41/138,091.74 = 81,297.62/x
  3. Step 3: Cross multiply
    92,507.41x = 138,091.74 × 81,297.62
  4. Step 4: Simplify right side
    92,507.41x = 11,226,529,113.20
  5. Step 5: Solve for x
    x = 11,226,529,113.20/92,507.41
  6. Step 6: Final answer
    x = 121,358.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.