Home / 130,119.34-179,495.41-79,147.66

Finding the Fourth Proportional to 130,119.34, 179,495.41 and 79,147.66

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Solution

The fourth proportional to 130,119.34, 179,495.41 and 79,147.66 is: 109,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,119.34 : 179,495.41 = 79,147.66 : x
  2. Step 2: Convert to fraction form
    130,119.34/179,495.41 = 79,147.66/x
  3. Step 3: Cross multiply
    130,119.34x = 179,495.41 × 79,147.66
  4. Step 4: Simplify right side
    130,119.34x = 14,206,641,682.24
  5. Step 5: Solve for x
    x = 14,206,641,682.24/130,119.34
  6. Step 6: Final answer
    x = 109,181.63

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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.