Home / 156,834.33-216,426.43-85,214.03

Finding the Fourth Proportional to 156,834.33, 216,426.43 and 85,214.03

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Solution

The fourth proportional to 156,834.33, 216,426.43 and 85,214.03 is: 117,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,834.33 : 216,426.43 = 85,214.03 : x
  2. Step 2: Convert to fraction form
    156,834.33/216,426.43 = 85,214.03/x
  3. Step 3: Cross multiply
    156,834.33x = 216,426.43 × 85,214.03
  4. Step 4: Simplify right side
    156,834.33x = 18,442,567,323.20
  5. Step 5: Solve for x
    x = 18,442,567,323.20/156,834.33
  6. Step 6: Final answer
    x = 117,592.67

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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.