Home / 123,902,945.38-171,160,912.65-99,286,656.58

Finding the Fourth Proportional to 123,902,945.38, 171,160,912.65 and 99,286,656.58

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Solution

The fourth proportional to 123,902,945.38, 171,160,912.65 and 99,286,656.58 is: 137,155,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,902,945.38 : 171,160,912.65 = 99,286,656.58 : x
  2. Step 2: Convert to fraction form
    123,902,945.38/171,160,912.65 = 99,286,656.58/x
  3. Step 3: Cross multiply
    123,902,945.38x = 171,160,912.65 × 99,286,656.58
  4. Step 4: Simplify right side
    123,902,945.38x = 16,993,994,754,199,928
  5. Step 5: Solve for x
    x = 16,993,994,754,199,928/123,902,945.38
  6. Step 6: Final answer
    x = 137,155,696.36

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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.