Home / 112,964.53-155,763.22-72,073.93

Finding the Fourth Proportional to 112,964.53, 155,763.22 and 72,073.93

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Solution

The fourth proportional to 112,964.53, 155,763.22 and 72,073.93 is: 99,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,964.53 : 155,763.22 = 72,073.93 : x
  2. Step 2: Convert to fraction form
    112,964.53/155,763.22 = 72,073.93/x
  3. Step 3: Cross multiply
    112,964.53x = 155,763.22 × 72,073.93
  4. Step 4: Simplify right side
    112,964.53x = 11,226,467,414.85
  5. Step 5: Solve for x
    x = 11,226,467,414.85/112,964.53
  6. Step 6: Final answer
    x = 99,380.46

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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.