Home / 129,959.48-179,345.58-76,245.44

Finding the Fourth Proportional to 129,959.48, 179,345.58 and 76,245.44

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Solution

The fourth proportional to 129,959.48, 179,345.58 and 76,245.44 is: 105,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,959.48 : 179,345.58 = 76,245.44 : x
  2. Step 2: Convert to fraction form
    129,959.48/179,345.58 = 76,245.44/x
  3. Step 3: Cross multiply
    129,959.48x = 179,345.58 × 76,245.44
  4. Step 4: Simplify right side
    129,959.48x = 13,674,282,659.16
  5. Step 5: Solve for x
    x = 13,674,282,659.16/129,959.48
  6. Step 6: Final answer
    x = 105,219.59

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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.