Home / 137,037.01-189,112.41-76,610.95

Finding the Fourth Proportional to 137,037.01, 189,112.41 and 76,610.95

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Solution

The fourth proportional to 137,037.01, 189,112.41 and 76,610.95 is: 105,723.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,037.01 : 189,112.41 = 76,610.95 : x
  2. Step 2: Convert to fraction form
    137,037.01/189,112.41 = 76,610.95/x
  3. Step 3: Cross multiply
    137,037.01x = 189,112.41 × 76,610.95
  4. Step 4: Simplify right side
    137,037.01x = 14,488,081,386.89
  5. Step 5: Solve for x
    x = 14,488,081,386.89/137,037.01
  6. Step 6: Final answer
    x = 105,723.86

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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.