Home / 133,313.10-199,969.65-115,428.30

Finding the Fourth Proportional to 133,313.10, 199,969.65 and 115,428.30

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Solution

The fourth proportional to 133,313.10, 199,969.65 and 115,428.30 is: 173,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,313.10 : 199,969.65 = 115,428.30 : x
  2. Step 2: Convert to fraction form
    133,313.10/199,969.65 = 115,428.30/x
  3. Step 3: Cross multiply
    133,313.10x = 199,969.65 × 115,428.30
  4. Step 4: Simplify right side
    133,313.10x = 23,082,156,751.10
  5. Step 5: Solve for x
    x = 23,082,156,751.10/133,313.10
  6. Step 6: Final answer
    x = 173,142.45

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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.