Home / 137,830.30-190,235.46-84,103.82

Finding the Fourth Proportional to 137,830.30, 190,235.46 and 84,103.82

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Solution

The fourth proportional to 137,830.30, 190,235.46 and 84,103.82 is: 116,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,830.30 : 190,235.46 = 84,103.82 : x
  2. Step 2: Convert to fraction form
    137,830.30/190,235.46 = 84,103.82/x
  3. Step 3: Cross multiply
    137,830.30x = 190,235.46 × 84,103.82
  4. Step 4: Simplify right side
    137,830.30x = 15,999,528,885.46
  5. Step 5: Solve for x
    x = 15,999,528,885.46/137,830.30
  6. Step 6: Final answer
    x = 116,081.36

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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.