Home / 127,039.47-190,527.30-52,180.28

Finding the Fourth Proportional to 127,039.47, 190,527.30 and 52,180.28

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Solution

The fourth proportional to 127,039.47, 190,527.30 and 52,180.28 is: 78,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,039.47 : 190,527.30 = 52,180.28 : x
  2. Step 2: Convert to fraction form
    127,039.47/190,527.30 = 52,180.28/x
  3. Step 3: Cross multiply
    127,039.47x = 190,527.30 × 52,180.28
  4. Step 4: Simplify right side
    127,039.47x = 9,941,766,909.01
  5. Step 5: Solve for x
    x = 9,941,766,909.01/127,039.47
  6. Step 6: Final answer
    x = 78,257.31

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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.