Home / 100,107.04-150,056.88-82,390.72

Finding the Fourth Proportional to 100,107.04, 150,056.88 and 82,390.72

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Solution

The fourth proportional to 100,107.04, 150,056.88 and 82,390.72 is: 123,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,107.04 : 150,056.88 = 82,390.72 : x
  2. Step 2: Convert to fraction form
    100,107.04/150,056.88 = 82,390.72/x
  3. Step 3: Cross multiply
    100,107.04x = 150,056.88 × 82,390.72
  4. Step 4: Simplify right side
    100,107.04x = 12,363,294,384.15
  5. Step 5: Solve for x
    x = 12,363,294,384.15/100,107.04
  6. Step 6: Final answer
    x = 123,500.75

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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.