Home / 112,563.20-155,175.68-69,513.93

Finding the Fourth Proportional to 112,563.20, 155,175.68 and 69,513.93

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Solution

The fourth proportional to 112,563.20, 155,175.68 and 69,513.93 is: 95,829.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,563.20 : 155,175.68 = 69,513.93 : x
  2. Step 2: Convert to fraction form
    112,563.20/155,175.68 = 69,513.93/x
  3. Step 3: Cross multiply
    112,563.20x = 155,175.68 × 69,513.93
  4. Step 4: Simplify right side
    112,563.20x = 10,786,871,531.01
  5. Step 5: Solve for x
    x = 10,786,871,531.01/112,563.20
  6. Step 6: Final answer
    x = 95,829.47

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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.