Home / 112,123,261.80-168,184,892.70-81,890,173.80

Finding the Fourth Proportional to 112,123,261.80, 168,184,892.70 and 81,890,173.80

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Solution

The fourth proportional to 112,123,261.80, 168,184,892.70 and 81,890,173.80 is: 122,835,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123,261.80 : 168,184,892.70 = 81,890,173.80 : x
  2. Step 2: Convert to fraction form
    112,123,261.80/168,184,892.70 = 81,890,173.80/x
  3. Step 3: Cross multiply
    112,123,261.80x = 168,184,892.70 × 81,890,173.80
  4. Step 4: Simplify right side
    112,123,261.80x = 13,772,690,093,737,350
  5. Step 5: Solve for x
    x = 13,772,690,093,737,350/112,123,261.80
  6. Step 6: Final answer
    x = 122,835,260.70

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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.