Home / 122,417.28-168,938.91-68,706.38

Finding the Fourth Proportional to 122,417.28, 168,938.91 and 68,706.38

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Solution

The fourth proportional to 122,417.28, 168,938.91 and 68,706.38 is: 94,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,417.28 : 168,938.91 = 68,706.38 : x
  2. Step 2: Convert to fraction form
    122,417.28/168,938.91 = 68,706.38/x
  3. Step 3: Cross multiply
    122,417.28x = 168,938.91 × 68,706.38
  4. Step 4: Simplify right side
    122,417.28x = 11,607,180,102.55
  5. Step 5: Solve for x
    x = 11,607,180,102.55/122,417.28
  6. Step 6: Final answer
    x = 94,816.52

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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.