Home / 130,197.80-179,633.09-84,859.34

Finding the Fourth Proportional to 130,197.80, 179,633.09 and 84,859.34

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Solution

The fourth proportional to 130,197.80, 179,633.09 and 84,859.34 is: 117,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,197.80 : 179,633.09 = 84,859.34 : x
  2. Step 2: Convert to fraction form
    130,197.80/179,633.09 = 84,859.34/x
  3. Step 3: Cross multiply
    130,197.80x = 179,633.09 × 84,859.34
  4. Step 4: Simplify right side
    130,197.80x = 15,243,544,773.54
  5. Step 5: Solve for x
    x = 15,243,544,773.54/130,197.80
  6. Step 6: Final answer
    x = 117,079.89

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1.5x scale

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.