Home / 127,789.52-176,350.26-74,106.40

Finding the Fourth Proportional to 127,789.52, 176,350.26 and 74,106.40

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Solution

The fourth proportional to 127,789.52, 176,350.26 and 74,106.40 is: 102,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789.52 : 176,350.26 = 74,106.40 : x
  2. Step 2: Convert to fraction form
    127,789.52/176,350.26 = 74,106.40/x
  3. Step 3: Cross multiply
    127,789.52x = 176,350.26 × 74,106.40
  4. Step 4: Simplify right side
    127,789.52x = 13,068,682,907.66
  5. Step 5: Solve for x
    x = 13,068,682,907.66/127,789.52
  6. Step 6: Final answer
    x = 102,267.25

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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.