Home / 130,118.82-179,560.11-72,754.62

Finding the Fourth Proportional to 130,118.82, 179,560.11 and 72,754.62

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Solution

The fourth proportional to 130,118.82, 179,560.11 and 72,754.62 is: 100,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,118.82 : 179,560.11 = 72,754.62 : x
  2. Step 2: Convert to fraction form
    130,118.82/179,560.11 = 72,754.62/x
  3. Step 3: Cross multiply
    130,118.82x = 179,560.11 × 72,754.62
  4. Step 4: Simplify right side
    130,118.82x = 13,063,827,570.21
  5. Step 5: Solve for x
    x = 13,063,827,570.21/130,118.82
  6. Step 6: Final answer
    x = 100,399.22

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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.