Home / 117,479,781.52-161,916,882.96-86,051,059.54

Finding the Fourth Proportional to 117,479,781.52, 161,916,882.96 and 86,051,059.54

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Solution

The fourth proportional to 117,479,781.52, 161,916,882.96 and 86,051,059.54 is: 118,600,146.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479,781.52 : 161,916,882.96 = 86,051,059.54 : x
  2. Step 2: Convert to fraction form
    117,479,781.52/161,916,882.96 = 86,051,059.54/x
  3. Step 3: Cross multiply
    117,479,781.52x = 161,916,882.96 × 86,051,059.54
  4. Step 4: Simplify right side
    117,479,781.52x = 13,933,119,336,122,174
  5. Step 5: Solve for x
    x = 13,933,119,336,122,174/117,479,781.52
  6. Step 6: Final answer
    x = 118,600,146.82

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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.