Home / 112,928.53-155,840.30-61,940.24

Finding the Fourth Proportional to 112,928.53, 155,840.30 and 61,940.24

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Solution

The fourth proportional to 112,928.53, 155,840.30 and 61,940.24 is: 85,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,928.53 : 155,840.30 = 61,940.24 : x
  2. Step 2: Convert to fraction form
    112,928.53/155,840.30 = 61,940.24/x
  3. Step 3: Cross multiply
    112,928.53x = 155,840.30 × 61,940.24
  4. Step 4: Simplify right side
    112,928.53x = 9,652,786,536.46
  5. Step 5: Solve for x
    x = 9,652,786,536.46/112,928.53
  6. Step 6: Final answer
    x = 85,476.95

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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.