Home / 105,431.64-158,124.60-33,390.24

Finding the Fourth Proportional to 105,431.64, 158,124.60 and 33,390.24

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Solution

The fourth proportional to 105,431.64, 158,124.60 and 33,390.24 is: 50,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,431.64 : 158,124.60 = 33,390.24 : x
  2. Step 2: Convert to fraction form
    105,431.64/158,124.60 = 33,390.24/x
  3. Step 3: Cross multiply
    105,431.64x = 158,124.60 × 33,390.24
  4. Step 4: Simplify right side
    105,431.64x = 5,279,818,343.90
  5. Step 5: Solve for x
    x = 5,279,818,343.90/105,431.64
  6. Step 6: Final answer
    x = 50,078.12

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1.5x scale

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.