Home / 127,078.47-190,915.59-119,897.28

Finding the Fourth Proportional to 127,078.47, 190,915.59 and 119,897.28

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Solution

The fourth proportional to 127,078.47, 190,915.59 and 119,897.28 is: 180,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,078.47 : 190,915.59 = 119,897.28 : x
  2. Step 2: Convert to fraction form
    127,078.47/190,915.59 = 119,897.28/x
  3. Step 3: Cross multiply
    127,078.47x = 190,915.59 × 119,897.28
  4. Step 4: Simplify right side
    127,078.47x = 22,890,259,950.60
  5. Step 5: Solve for x
    x = 22,890,259,950.60/127,078.47
  6. Step 6: Final answer
    x = 180,126.97

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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.