Home / 100,232.64-138,319.20-57,792.96

Finding the Fourth Proportional to 100,232.64, 138,319.20 and 57,792.96

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Solution

The fourth proportional to 100,232.64, 138,319.20 and 57,792.96 is: 79,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,232.64 : 138,319.20 = 57,792.96 : x
  2. Step 2: Convert to fraction form
    100,232.64/138,319.20 = 57,792.96/x
  3. Step 3: Cross multiply
    100,232.64x = 138,319.20 × 57,792.96
  4. Step 4: Simplify right side
    100,232.64x = 7,993,875,992.83
  5. Step 5: Solve for x
    x = 7,993,875,992.83/100,232.64
  6. Step 6: Final answer
    x = 79,753.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.