Home / 301,081.10-451,621.65-123,715.40

Finding the Fourth Proportional to 301,081.10, 451,621.65 and 123,715.40

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Solution

The fourth proportional to 301,081.10, 451,621.65 and 123,715.40 is: 185,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,081.10 : 451,621.65 = 123,715.40 : x
  2. Step 2: Convert to fraction form
    301,081.10/451,621.65 = 123,715.40/x
  3. Step 3: Cross multiply
    301,081.10x = 451,621.65 × 123,715.40
  4. Step 4: Simplify right side
    301,081.10x = 55,872,553,078.41
  5. Step 5: Solve for x
    x = 55,872,553,078.41/301,081.10
  6. Step 6: Final answer
    x = 185,573.10

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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.