Home / 137,137.02-189,247.73-76,706.97

Finding the Fourth Proportional to 137,137.02, 189,247.73 and 76,706.97

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Solution

The fourth proportional to 137,137.02, 189,247.73 and 76,706.97 is: 105,854.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,137.02 : 189,247.73 = 76,706.97 : x
  2. Step 2: Convert to fraction form
    137,137.02/189,247.73 = 76,706.97/x
  3. Step 3: Cross multiply
    137,137.02x = 189,247.73 × 76,706.97
  4. Step 4: Simplify right side
    137,137.02x = 14,516,619,564.14
  5. Step 5: Solve for x
    x = 14,516,619,564.14/137,137.02
  6. Step 6: Final answer
    x = 105,854.86

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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.