Home / 147,470.10-203,485.08-82,939.11

Finding the Fourth Proportional to 147,470.10, 203,485.08 and 82,939.11

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Solution

The fourth proportional to 147,470.10, 203,485.08 and 82,939.11 is: 114,442.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,470.10 : 203,485.08 = 82,939.11 : x
  2. Step 2: Convert to fraction form
    147,470.10/203,485.08 = 82,939.11/x
  3. Step 3: Cross multiply
    147,470.10x = 203,485.08 × 82,939.11
  4. Step 4: Simplify right side
    147,470.10x = 16,876,871,433.48
  5. Step 5: Solve for x
    x = 16,876,871,433.48/147,470.10
  6. Step 6: Final answer
    x = 114,442.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.