Home / 122,147.71-168,581.64-68,436.36

Finding the Fourth Proportional to 122,147.71, 168,581.64 and 68,436.36

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Solution

The fourth proportional to 122,147.71, 168,581.64 and 68,436.36 is: 94,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,147.71 : 168,581.64 = 68,436.36 : x
  2. Step 2: Convert to fraction form
    122,147.71/168,581.64 = 68,436.36/x
  3. Step 3: Cross multiply
    122,147.71x = 168,581.64 × 68,436.36
  4. Step 4: Simplify right side
    122,147.71x = 11,537,114,061.07
  5. Step 5: Solve for x
    x = 11,537,114,061.07/122,147.71
  6. Step 6: Final answer
    x = 94,452.15

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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.