Home / 129,760.36-179,097.96-84,359.32

Finding the Fourth Proportional to 129,760.36, 179,097.96 and 84,359.32

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Solution

The fourth proportional to 129,760.36, 179,097.96 and 84,359.32 is: 116,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.36 : 179,097.96 = 84,359.32 : x
  2. Step 2: Convert to fraction form
    129,760.36/179,097.96 = 84,359.32/x
  3. Step 3: Cross multiply
    129,760.36x = 179,097.96 × 84,359.32
  4. Step 4: Simplify right side
    129,760.36x = 15,108,582,118.99
  5. Step 5: Solve for x
    x = 15,108,582,118.99/129,760.36
  6. Step 6: Final answer
    x = 116,434.50

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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.