Home / 129,956.48-179,341.44-76,242.44

Finding the Fourth Proportional to 129,956.48, 179,341.44 and 76,242.44

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Solution

The fourth proportional to 129,956.48, 179,341.44 and 76,242.44 is: 105,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,956.48 : 179,341.44 = 76,242.44 : x
  2. Step 2: Convert to fraction form
    129,956.48/179,341.44 = 76,242.44/x
  3. Step 3: Cross multiply
    129,956.48x = 179,341.44 × 76,242.44
  4. Step 4: Simplify right side
    129,956.48x = 13,673,428,978.71
  5. Step 5: Solve for x
    x = 13,673,428,978.71/129,956.48
  6. Step 6: Final answer
    x = 105,215.45

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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.