Home / 112,655.92-155,462.82-61,667.40

Finding the Fourth Proportional to 112,655.92, 155,462.82 and 61,667.40

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Solution

The fourth proportional to 112,655.92, 155,462.82 and 61,667.40 is: 85,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,655.92 : 155,462.82 = 61,667.40 : x
  2. Step 2: Convert to fraction form
    112,655.92/155,462.82 = 61,667.40/x
  3. Step 3: Cross multiply
    112,655.92x = 155,462.82 × 61,667.40
  4. Step 4: Simplify right side
    112,655.92x = 9,586,987,906.07
  5. Step 5: Solve for x
    x = 9,586,987,906.07/112,655.92
  6. Step 6: Final answer
    x = 85,099.73

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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.