Home / 131,163,591.96-181,021,715.82-76,159,448.28

Finding the Fourth Proportional to 131,163,591.96, 181,021,715.82 and 76,159,448.28

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Solution

The fourth proportional to 131,163,591.96, 181,021,715.82 and 76,159,448.28 is: 105,109,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,163,591.96 : 181,021,715.82 = 76,159,448.28 : x
  2. Step 2: Convert to fraction form
    131,163,591.96/181,021,715.82 = 76,159,448.28/x
  3. Step 3: Cross multiply
    131,163,591.96x = 181,021,715.82 × 76,159,448.28
  4. Step 4: Simplify right side
    131,163,591.96x = 13,786,514,003,550,148
  5. Step 5: Solve for x
    x = 13,786,514,003,550,148/131,163,591.96
  6. Step 6: Final answer
    x = 105,109,305.09

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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.