Home / 126,459.72-174,595.77-81,157.23

Finding the Fourth Proportional to 126,459.72, 174,595.77 and 81,157.23

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Solution

The fourth proportional to 126,459.72, 174,595.77 and 81,157.23 is: 112,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,459.72 : 174,595.77 = 81,157.23 : x
  2. Step 2: Convert to fraction form
    126,459.72/174,595.77 = 81,157.23/x
  3. Step 3: Cross multiply
    126,459.72x = 174,595.77 × 81,157.23
  4. Step 4: Simplify right side
    126,459.72x = 14,169,709,062.92
  5. Step 5: Solve for x
    x = 14,169,709,062.92/126,459.72
  6. Step 6: Final answer
    x = 112,049.19

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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.