Home / 121,863,540.76-168,171,686.24-69,653,697.44

Finding the Fourth Proportional to 121,863,540.76, 168,171,686.24 and 69,653,697.44

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Solution

The fourth proportional to 121,863,540.76, 168,171,686.24 and 69,653,697.44 is: 96,122,102.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,540.76 : 168,171,686.24 = 69,653,697.44 : x
  2. Step 2: Convert to fraction form
    121,863,540.76/168,171,686.24 = 69,653,697.44/x
  3. Step 3: Cross multiply
    121,863,540.76x = 168,171,686.24 × 69,653,697.44
  4. Step 4: Simplify right side
    121,863,540.76x = 11,713,779,751,335,572
  5. Step 5: Solve for x
    x = 11,713,779,751,335,572/121,863,540.76
  6. Step 6: Final answer
    x = 96,122,102.46

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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.