Home / 127,007.11-190,391.45-42,708.32

Finding the Fourth Proportional to 127,007.11, 190,391.45 and 42,708.32

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Solution

The fourth proportional to 127,007.11, 190,391.45 and 42,708.32 is: 64,022.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,007.11 : 190,391.45 = 42,708.32 : x
  2. Step 2: Convert to fraction form
    127,007.11/190,391.45 = 42,708.32/x
  3. Step 3: Cross multiply
    127,007.11x = 190,391.45 × 42,708.32
  4. Step 4: Simplify right side
    127,007.11x = 8,131,298,019.91
  5. Step 5: Solve for x
    x = 8,131,298,019.91/127,007.11
  6. Step 6: Final answer
    x = 64,022.39

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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.