Home / 127,242.51-190,862.55-77,336.39

Finding the Fourth Proportional to 127,242.51, 190,862.55 and 77,336.39

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Solution

The fourth proportional to 127,242.51, 190,862.55 and 77,336.39 is: 116,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,242.51 : 190,862.55 = 77,336.39 : x
  2. Step 2: Convert to fraction form
    127,242.51/190,862.55 = 77,336.39/x
  3. Step 3: Cross multiply
    127,242.51x = 190,862.55 × 77,336.39
  4. Step 4: Simplify right side
    127,242.51x = 14,760,620,603.19
  5. Step 5: Solve for x
    x = 14,760,620,603.19/127,242.51
  6. Step 6: Final answer
    x = 116,003.85

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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.