Home / 120,906,639.45-166,851,207.32-68,695,743.69

Finding the Fourth Proportional to 120,906,639.45, 166,851,207.32 and 68,695,743.69

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Solution

The fourth proportional to 120,906,639.45, 166,851,207.32 and 68,695,743.69 is: 94,800,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,906,639.45 : 166,851,207.32 = 68,695,743.69 : x
  2. Step 2: Convert to fraction form
    120,906,639.45/166,851,207.32 = 68,695,743.69/x
  3. Step 3: Cross multiply
    120,906,639.45x = 166,851,207.32 × 68,695,743.69
  4. Step 4: Simplify right side
    120,906,639.45x = 11,461,967,772,078,292
  5. Step 5: Solve for x
    x = 11,461,967,772,078,292/120,906,639.45
  6. Step 6: Final answer
    x = 94,800,151.79

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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.