Home / 126,493.40-189,618.60-73,130.60

Finding the Fourth Proportional to 126,493.40, 189,618.60 and 73,130.60

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Solution

The fourth proportional to 126,493.40, 189,618.60 and 73,130.60 is: 109,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,493.40 : 189,618.60 = 73,130.60 : x
  2. Step 2: Convert to fraction form
    126,493.40/189,618.60 = 73,130.60/x
  3. Step 3: Cross multiply
    126,493.40x = 189,618.60 × 73,130.60
  4. Step 4: Simplify right side
    126,493.40x = 13,866,921,989.16
  5. Step 5: Solve for x
    x = 13,866,921,989.16/126,493.40
  6. Step 6: Final answer
    x = 109,625.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.