Home / 126,459.88-174,595.99-81,157.39

Finding the Fourth Proportional to 126,459.88, 174,595.99 and 81,157.39

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Solution

The fourth proportional to 126,459.88, 174,595.99 and 81,157.39 is: 112,049.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,459.88 : 174,595.99 = 81,157.39 : x
  2. Step 2: Convert to fraction form
    126,459.88/174,595.99 = 81,157.39/x
  3. Step 3: Cross multiply
    126,459.88x = 174,595.99 × 81,157.39
  4. Step 4: Simplify right side
    126,459.88x = 14,169,754,852.87
  5. Step 5: Solve for x
    x = 14,169,754,852.87/126,459.88
  6. Step 6: Final answer
    x = 112,049.41

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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.