Home / 112,829.96-155,655.24-72,536.24

Finding the Fourth Proportional to 112,829.96, 155,655.24 and 72,536.24

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Solution

The fourth proportional to 112,829.96, 155,655.24 and 72,536.24 is: 100,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,829.96 : 155,655.24 = 72,536.24 : x
  2. Step 2: Convert to fraction form
    112,829.96/155,655.24 = 72,536.24/x
  3. Step 3: Cross multiply
    112,829.96x = 155,655.24 × 72,536.24
  4. Step 4: Simplify right side
    112,829.96x = 11,290,645,845.90
  5. Step 5: Solve for x
    x = 11,290,645,845.90/112,829.96
  6. Step 6: Final answer
    x = 100,067.80

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1.5x scale

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.