Home / 112,963.53-155,761.85-72,072.93

Finding the Fourth Proportional to 112,963.53, 155,761.85 and 72,072.93

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Solution

The fourth proportional to 112,963.53, 155,761.85 and 72,072.93 is: 99,379.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,963.53 : 155,761.85 = 72,072.93 : x
  2. Step 2: Convert to fraction form
    112,963.53/155,761.85 = 72,072.93/x
  3. Step 3: Cross multiply
    112,963.53x = 155,761.85 × 72,072.93
  4. Step 4: Simplify right side
    112,963.53x = 11,226,212,551.36
  5. Step 5: Solve for x
    x = 11,226,212,551.36/112,963.53
  6. Step 6: Final answer
    x = 99,379.09

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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.