Home / 122,289.45-168,756.82-68,573.28

Finding the Fourth Proportional to 122,289.45, 168,756.82 and 68,573.28

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Solution

The fourth proportional to 122,289.45, 168,756.82 and 68,573.28 is: 94,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,289.45 : 168,756.82 = 68,573.28 : x
  2. Step 2: Convert to fraction form
    122,289.45/168,756.82 = 68,573.28/x
  3. Step 3: Cross multiply
    122,289.45x = 168,756.82 × 68,573.28
  4. Step 4: Simplify right side
    122,289.45x = 11,572,209,131.17
  5. Step 5: Solve for x
    x = 11,572,209,131.17/122,289.45
  6. Step 6: Final answer
    x = 94,629.66

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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.