Home / 122,143.10-168,567.84-68,427.38

Finding the Fourth Proportional to 122,143.10, 168,567.84 and 68,427.38

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Solution

The fourth proportional to 122,143.10, 168,567.84 and 68,427.38 is: 94,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,143.10 : 168,567.84 = 68,427.38 : x
  2. Step 2: Convert to fraction form
    122,143.10/168,567.84 = 68,427.38/x
  3. Step 3: Cross multiply
    122,143.10x = 168,567.84 × 68,427.38
  4. Step 4: Simplify right side
    122,143.10x = 11,534,655,643.46
  5. Step 5: Solve for x
    x = 11,534,655,643.46/122,143.10
  6. Step 6: Final answer
    x = 94,435.59

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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.