Home / 156,902.55-235,296.87-85,877.67

Finding the Fourth Proportional to 156,902.55, 235,296.87 and 85,877.67

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Solution

The fourth proportional to 156,902.55, 235,296.87 and 85,877.67 is: 128,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,902.55 : 235,296.87 = 85,877.67 : x
  2. Step 2: Convert to fraction form
    156,902.55/235,296.87 = 85,877.67/x
  3. Step 3: Cross multiply
    156,902.55x = 235,296.87 × 85,877.67
  4. Step 4: Simplify right side
    156,902.55x = 20,206,746,953.89
  5. Step 5: Solve for x
    x = 20,206,746,953.89/156,902.55
  6. Step 6: Final answer
    x = 128,785.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.