Home / 156,983.55-235,307.64-72,645.54

Finding the Fourth Proportional to 156,983.55, 235,307.64 and 72,645.54

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Solution

The fourth proportional to 156,983.55, 235,307.64 and 72,645.54 is: 108,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,983.55 : 235,307.64 = 72,645.54 : x
  2. Step 2: Convert to fraction form
    156,983.55/235,307.64 = 72,645.54/x
  3. Step 3: Cross multiply
    156,983.55x = 235,307.64 × 72,645.54
  4. Step 4: Simplify right side
    156,983.55x = 17,094,050,573.93
  5. Step 5: Solve for x
    x = 17,094,050,573.93/156,983.55
  6. Step 6: Final answer
    x = 108,890.71

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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.