Home / 127,830.30-176,406.70-71,245.32

Finding the Fourth Proportional to 127,830.30, 176,406.70 and 71,245.32

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Solution

The fourth proportional to 127,830.30, 176,406.70 and 71,245.32 is: 98,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,830.30 : 176,406.70 = 71,245.32 : x
  2. Step 2: Convert to fraction form
    127,830.30/176,406.70 = 71,245.32/x
  3. Step 3: Cross multiply
    127,830.30x = 176,406.70 × 71,245.32
  4. Step 4: Simplify right side
    127,830.30x = 12,568,151,791.64
  5. Step 5: Solve for x
    x = 12,568,151,791.64/127,830.30
  6. Step 6: Final answer
    x = 98,319.04

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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.