Home / 136,662,939.68-188,365,010.64-103,612,244

Finding the Fourth Proportional to 136,662,939.68, 188,365,010.64 and 103,612,244

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Solution

The fourth proportional to 136,662,939.68, 188,365,010.64 and 103,612,244 is: 142,810,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,662,939.68 : 188,365,010.64 = 103,612,244 : x
  2. Step 2: Convert to fraction form
    136,662,939.68/188,365,010.64 = 103,612,244/x
  3. Step 3: Cross multiply
    136,662,939.68x = 188,365,010.64 × 103,612,244
  4. Step 4: Simplify right side
    136,662,939.68x = 19,516,921,443,494,276
  5. Step 5: Solve for x
    x = 19,516,921,443,494,276/136,662,939.68
  6. Step 6: Final answer
    x = 142,810,636.81

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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.