Home / 127,838.25-176,416.95-76,851.54

Finding the Fourth Proportional to 127,838.25, 176,416.95 and 76,851.54

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Solution

The fourth proportional to 127,838.25, 176,416.95 and 76,851.54 is: 106,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,838.25 : 176,416.95 = 76,851.54 : x
  2. Step 2: Convert to fraction form
    127,838.25/176,416.95 = 76,851.54/x
  3. Step 3: Cross multiply
    127,838.25x = 176,416.95 × 76,851.54
  4. Step 4: Simplify right side
    127,838.25x = 13,557,914,289.60
  5. Step 5: Solve for x
    x = 13,557,914,289.60/127,838.25
  6. Step 6: Final answer
    x = 106,055.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.