Home / 101,477.20-140,022.18-63,724.72

Finding the Fourth Proportional to 101,477.20, 140,022.18 and 63,724.72

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Solution

The fourth proportional to 101,477.20, 140,022.18 and 63,724.72 is: 87,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,477.20 : 140,022.18 = 63,724.72 : x
  2. Step 2: Convert to fraction form
    101,477.20/140,022.18 = 63,724.72/x
  3. Step 3: Cross multiply
    101,477.20x = 140,022.18 × 63,724.72
  4. Step 4: Simplify right side
    101,477.20x = 8,922,874,214.29
  5. Step 5: Solve for x
    x = 8,922,874,214.29/101,477.20
  6. Step 6: Final answer
    x = 87,929.84

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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.