Home / 112,123.41-154,729.67-61,822.41

Finding the Fourth Proportional to 112,123.41, 154,729.67 and 61,822.41

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Solution

The fourth proportional to 112,123.41, 154,729.67 and 61,822.41 is: 85,314.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123.41 : 154,729.67 = 61,822.41 : x
  2. Step 2: Convert to fraction form
    112,123.41/154,729.67 = 61,822.41/x
  3. Step 3: Cross multiply
    112,123.41x = 154,729.67 × 61,822.41
  4. Step 4: Simplify right side
    112,123.41x = 9,565,761,097.90
  5. Step 5: Solve for x
    x = 9,565,761,097.90/112,123.41
  6. Step 6: Final answer
    x = 85,314.58

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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.