Home / 126,511.48-174,586.01-72,795.43

Finding the Fourth Proportional to 126,511.48, 174,586.01 and 72,795.43

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Solution

The fourth proportional to 126,511.48, 174,586.01 and 72,795.43 is: 100,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,511.48 : 174,586.01 = 72,795.43 : x
  2. Step 2: Convert to fraction form
    126,511.48/174,586.01 = 72,795.43/x
  3. Step 3: Cross multiply
    126,511.48x = 174,586.01 × 72,795.43
  4. Step 4: Simplify right side
    126,511.48x = 12,709,063,669.93
  5. Step 5: Solve for x
    x = 12,709,063,669.93/126,511.48
  6. Step 6: Final answer
    x = 100,457.79

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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.