Home / 121,863,538.22-168,171,682.75-69,653,694.89

Finding the Fourth Proportional to 121,863,538.22, 168,171,682.75 and 69,653,694.89

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Solution

The fourth proportional to 121,863,538.22, 168,171,682.75 and 69,653,694.89 is: 96,122,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,538.22 : 168,171,682.75 = 69,653,694.89 : x
  2. Step 2: Convert to fraction form
    121,863,538.22/168,171,682.75 = 69,653,694.89/x
  3. Step 3: Cross multiply
    121,863,538.22x = 168,171,682.75 × 69,653,694.89
  4. Step 4: Simplify right side
    121,863,538.22x = 11,713,779,078,652,586
  5. Step 5: Solve for x
    x = 11,713,779,078,652,586/121,863,538.22
  6. Step 6: Final answer
    x = 96,122,098.95

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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.