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Finding the Fourth Proportional to 119,715.77, 165,200.97 and 68,717.67

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Solution

The fourth proportional to 119,715.77, 165,200.97 and 68,717.67 is: 94,826.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,715.77 : 165,200.97 = 68,717.67 : x
  2. Step 2: Convert to fraction form
    119,715.77/165,200.97 = 68,717.67/x
  3. Step 3: Cross multiply
    119,715.77x = 165,200.97 × 68,717.67
  4. Step 4: Simplify right side
    119,715.77x = 11,352,224,991.79
  5. Step 5: Solve for x
    x = 11,352,224,991.79/119,715.77
  6. Step 6: Final answer
    x = 94,826.48

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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.