Home / 100,109.04-150,059.88-82,392.72

Finding the Fourth Proportional to 100,109.04, 150,059.88 and 82,392.72

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Solution

The fourth proportional to 100,109.04, 150,059.88 and 82,392.72 is: 123,503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,109.04 : 150,059.88 = 82,392.72 : x
  2. Step 2: Convert to fraction form
    100,109.04/150,059.88 = 82,392.72/x
  3. Step 3: Cross multiply
    100,109.04x = 150,059.88 × 82,392.72
  4. Step 4: Simplify right side
    100,109.04x = 12,363,841,676.07
  5. Step 5: Solve for x
    x = 12,363,841,676.07/100,109.04
  6. Step 6: Final answer
    x = 123,503.75

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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.