Home / 161,254,142.10-222,521,126.85-91,629,859.86

Finding the Fourth Proportional to 161,254,142.10, 222,521,126.85 and 91,629,859.86

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Solution

The fourth proportional to 161,254,142.10, 222,521,126.85 and 91,629,859.86 is: 126,443,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,254,142.10 : 222,521,126.85 = 91,629,859.86 : x
  2. Step 2: Convert to fraction form
    161,254,142.10/222,521,126.85 = 91,629,859.86/x
  3. Step 3: Cross multiply
    161,254,142.10x = 222,521,126.85 × 91,629,859.86
  4. Step 4: Simplify right side
    161,254,142.10x = 20,389,579,669,154,784
  5. Step 5: Solve for x
    x = 20,389,579,669,154,784/161,254,142.10
  6. Step 6: Final answer
    x = 126,443,757.68

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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.