Home / 112,406.36-155,052.92-74,152.32

Finding the Fourth Proportional to 112,406.36, 155,052.92 and 74,152.32

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Solution

The fourth proportional to 112,406.36, 155,052.92 and 74,152.32 is: 102,285.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,406.36 : 155,052.92 = 74,152.32 : x
  2. Step 2: Convert to fraction form
    112,406.36/155,052.92 = 74,152.32/x
  3. Step 3: Cross multiply
    112,406.36x = 155,052.92 × 74,152.32
  4. Step 4: Simplify right side
    112,406.36x = 11,497,533,370.01
  5. Step 5: Solve for x
    x = 11,497,533,370.01/112,406.36
  6. Step 6: Final answer
    x = 102,285.43

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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.