Home / 127,430.32-191,067.72-52,527.28

Finding the Fourth Proportional to 127,430.32, 191,067.72 and 52,527.28

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Solution

The fourth proportional to 127,430.32, 191,067.72 and 52,527.28 is: 78,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,430.32 : 191,067.72 = 52,527.28 : x
  2. Step 2: Convert to fraction form
    127,430.32/191,067.72 = 52,527.28/x
  3. Step 3: Cross multiply
    127,430.32x = 191,067.72 × 52,527.28
  4. Step 4: Simplify right side
    127,430.32x = 10,036,267,627.40
  5. Step 5: Solve for x
    x = 10,036,267,627.40/127,430.32
  6. Step 6: Final answer
    x = 78,758.87

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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.