Home / 207,785.10-311,693.85-89,460.30

Finding the Fourth Proportional to 207,785.10, 311,693.85 and 89,460.30

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Solution

The fourth proportional to 207,785.10, 311,693.85 and 89,460.30 is: 134,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,785.10 : 311,693.85 = 89,460.30 : x
  2. Step 2: Convert to fraction form
    207,785.10/311,693.85 = 89,460.30/x
  3. Step 3: Cross multiply
    207,785.10x = 311,693.85 × 89,460.30
  4. Step 4: Simplify right side
    207,785.10x = 27,884,225,329.16
  5. Step 5: Solve for x
    x = 27,884,225,329.16/207,785.10
  6. Step 6: Final answer
    x = 134,197.42

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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.