Home / 112,756.93-155,604.11-61,769.59

Finding the Fourth Proportional to 112,756.93, 155,604.11 and 61,769.59

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Solution

The fourth proportional to 112,756.93, 155,604.11 and 61,769.59 is: 85,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,756.93 : 155,604.11 = 61,769.59 : x
  2. Step 2: Convert to fraction form
    112,756.93/155,604.11 = 61,769.59/x
  3. Step 3: Cross multiply
    112,756.93x = 155,604.11 × 61,769.59
  4. Step 4: Simplify right side
    112,756.93x = 9,611,602,194.31
  5. Step 5: Solve for x
    x = 9,611,602,194.31/112,756.93
  6. Step 6: Final answer
    x = 85,241.79

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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.