Home / 121,945,589.91-168,280,559.78-69,021,162.18

Finding the Fourth Proportional to 121,945,589.91, 168,280,559.78 and 69,021,162.18

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Solution

The fourth proportional to 121,945,589.91, 168,280,559.78 and 69,021,162.18 is: 95,246,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,945,589.91 : 168,280,559.78 = 69,021,162.18 : x
  2. Step 2: Convert to fraction form
    121,945,589.91/168,280,559.78 = 69,021,162.18/x
  3. Step 3: Cross multiply
    121,945,589.91x = 168,280,559.78 × 69,021,162.18
  4. Step 4: Simplify right side
    121,945,589.91x = 11,614,919,807,971,460
  5. Step 5: Solve for x
    x = 11,614,919,807,971,460/121,945,589.91
  6. Step 6: Final answer
    x = 95,246,739.28

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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.