Home / 137,076.41-189,156.66-76,652.03

Finding the Fourth Proportional to 137,076.41, 189,156.66 and 76,652.03

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Solution

The fourth proportional to 137,076.41, 189,156.66 and 76,652.03 is: 105,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,076.41 : 189,156.66 = 76,652.03 : x
  2. Step 2: Convert to fraction form
    137,076.41/189,156.66 = 76,652.03/x
  3. Step 3: Cross multiply
    137,076.41x = 189,156.66 × 76,652.03
  4. Step 4: Simplify right side
    137,076.41x = 14,499,241,977.02
  5. Step 5: Solve for x
    x = 14,499,241,977.02/137,076.41
  6. Step 6: Final answer
    x = 105,774.89

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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.