Home / 127,898.22-176,443.50-121,969.02

Finding the Fourth Proportional to 127,898.22, 176,443.50 and 121,969.02

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Solution

The fourth proportional to 127,898.22, 176,443.50 and 121,969.02 is: 168,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,898.22 : 176,443.50 = 121,969.02 : x
  2. Step 2: Convert to fraction form
    127,898.22/176,443.50 = 121,969.02/x
  3. Step 3: Cross multiply
    127,898.22x = 176,443.50 × 121,969.02
  4. Step 4: Simplify right side
    127,898.22x = 21,520,640,780.37
  5. Step 5: Solve for x
    x = 21,520,640,780.37/127,898.22
  6. Step 6: Final answer
    x = 168,263.80

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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.