Home / 124,873,642.30-172,321,885.31-69,121,347.97

Finding the Fourth Proportional to 124,873,642.30, 172,321,885.31 and 69,121,347.97

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Solution

The fourth proportional to 124,873,642.30, 172,321,885.31 and 69,121,347.97 is: 95,385,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,873,642.30 : 172,321,885.31 = 69,121,347.97 : x
  2. Step 2: Convert to fraction form
    124,873,642.30/172,321,885.31 = 69,121,347.97/x
  3. Step 3: Cross multiply
    124,873,642.30x = 172,321,885.31 × 69,121,347.97
  4. Step 4: Simplify right side
    124,873,642.30x = 11,911,120,997,358,942
  5. Step 5: Solve for x
    x = 11,911,120,997,358,942/124,873,642.30
  6. Step 6: Final answer
    x = 95,385,389.41

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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.