Home / 123,903,231.20-171,161,307.36-99,286,942.40

Finding the Fourth Proportional to 123,903,231.20, 171,161,307.36 and 99,286,942.40

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Solution

The fourth proportional to 123,903,231.20, 171,161,307.36 and 99,286,942.40 is: 137,156,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,903,231.20 : 171,161,307.36 = 99,286,942.40 : x
  2. Step 2: Convert to fraction form
    123,903,231.20/171,161,307.36 = 99,286,942.40/x
  3. Step 3: Cross multiply
    123,903,231.20x = 171,161,307.36 × 99,286,942.40
  4. Step 4: Simplify right side
    123,903,231.20x = 16,994,082,864,961,018
  5. Step 5: Solve for x
    x = 16,994,082,864,961,018/123,903,231.20
  6. Step 6: Final answer
    x = 137,156,091.09

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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.