Home / 137,035.89-189,112.02-76,600.05

Finding the Fourth Proportional to 137,035.89, 189,112.02 and 76,600.05

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Solution

The fourth proportional to 137,035.89, 189,112.02 and 76,600.05 is: 105,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,035.89 : 189,112.02 = 76,600.05 : x
  2. Step 2: Convert to fraction form
    137,035.89/189,112.02 = 76,600.05/x
  3. Step 3: Cross multiply
    137,035.89x = 189,112.02 × 76,600.05
  4. Step 4: Simplify right side
    137,035.89x = 14,485,990,187.60
  5. Step 5: Solve for x
    x = 14,485,990,187.60/137,035.89
  6. Step 6: Final answer
    x = 105,709.46

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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.