Home / 123,588,036.70-185,382,055.05-71,861,112.70

Finding the Fourth Proportional to 123,588,036.70, 185,382,055.05 and 71,861,112.70

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Solution

The fourth proportional to 123,588,036.70, 185,382,055.05 and 71,861,112.70 is: 107,791,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,588,036.70 : 185,382,055.05 = 71,861,112.70 : x
  2. Step 2: Convert to fraction form
    123,588,036.70/185,382,055.05 = 71,861,112.70/x
  3. Step 3: Cross multiply
    123,588,036.70x = 185,382,055.05 × 71,861,112.70
  4. Step 4: Simplify right side
    123,588,036.70x = 13,321,760,750,505,656
  5. Step 5: Solve for x
    x = 13,321,760,750,505,656/123,588,036.70
  6. Step 6: Final answer
    x = 107,791,669.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.