Home / 123,084,916.80-184,403,426.40-100,242,139.20

Finding the Fourth Proportional to 123,084,916.80, 184,403,426.40 and 100,242,139.20

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Solution

The fourth proportional to 123,084,916.80, 184,403,426.40 and 100,242,139.20 is: 150,180,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,084,916.80 : 184,403,426.40 = 100,242,139.20 : x
  2. Step 2: Convert to fraction form
    123,084,916.80/184,403,426.40 = 100,242,139.20/x
  3. Step 3: Cross multiply
    123,084,916.80x = 184,403,426.40 × 100,242,139.20
  4. Step 4: Simplify right side
    123,084,916.80x = 18,484,993,938,145,756
  5. Step 5: Solve for x
    x = 18,484,993,938,145,756/123,084,916.80
  6. Step 6: Final answer
    x = 150,180,821.65

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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.