Home / 112,912.58-155,819.36-62,611.58

Finding the Fourth Proportional to 112,912.58, 155,819.36 and 62,611.58

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Solution

The fourth proportional to 112,912.58, 155,819.36 and 62,611.58 is: 86,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,912.58 : 155,819.36 = 62,611.58 : x
  2. Step 2: Convert to fraction form
    112,912.58/155,819.36 = 62,611.58/x
  3. Step 3: Cross multiply
    112,912.58x = 155,819.36 × 62,611.58
  4. Step 4: Simplify right side
    112,912.58x = 9,756,095,421.97
  5. Step 5: Solve for x
    x = 9,756,095,421.97/112,912.58
  6. Step 6: Final answer
    x = 86,403.98

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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.