Home / 129,917.81-179,287.12-70,301.81

Finding the Fourth Proportional to 129,917.81, 179,287.12 and 70,301.81

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Solution

The fourth proportional to 129,917.81, 179,287.12 and 70,301.81 is: 97,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,917.81 : 179,287.12 = 70,301.81 : x
  2. Step 2: Convert to fraction form
    129,917.81/179,287.12 = 70,301.81/x
  3. Step 3: Cross multiply
    129,917.81x = 179,287.12 × 70,301.81
  4. Step 4: Simplify right side
    129,917.81x = 12,604,209,581.78
  5. Step 5: Solve for x
    x = 12,604,209,581.78/129,917.81
  6. Step 6: Final answer
    x = 97,016.79

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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.