Home / 112,832.43-155,688.31-72,536.95

Finding the Fourth Proportional to 112,832.43, 155,688.31 and 72,536.95

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Solution

The fourth proportional to 112,832.43, 155,688.31 and 72,536.95 is: 100,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,832.43 : 155,688.31 = 72,536.95 : x
  2. Step 2: Convert to fraction form
    112,832.43/155,688.31 = 72,536.95/x
  3. Step 3: Cross multiply
    112,832.43x = 155,688.31 × 72,536.95
  4. Step 4: Simplify right side
    112,832.43x = 11,293,155,158.05
  5. Step 5: Solve for x
    x = 11,293,155,158.05/112,832.43
  6. Step 6: Final answer
    x = 100,087.85

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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.