Home / 119,887.24-165,342.81-72,131.67

Finding the Fourth Proportional to 119,887.24, 165,342.81 and 72,131.67

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Solution

The fourth proportional to 119,887.24, 165,342.81 and 72,131.67 is: 99,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,887.24 : 165,342.81 = 72,131.67 : x
  2. Step 2: Convert to fraction form
    119,887.24/165,342.81 = 72,131.67/x
  3. Step 3: Cross multiply
    119,887.24x = 165,342.81 × 72,131.67
  4. Step 4: Simplify right side
    119,887.24x = 11,926,453,007.79
  5. Step 5: Solve for x
    x = 11,926,453,007.79/119,887.24
  6. Step 6: Final answer
    x = 99,480.59

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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.