Home / 156,730.67-235,128.50-71,300.85

Finding the Fourth Proportional to 156,730.67, 235,128.50 and 71,300.85

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Solution

The fourth proportional to 156,730.67, 235,128.50 and 71,300.85 is: 106,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.67 : 235,128.50 = 71,300.85 : x
  2. Step 2: Convert to fraction form
    156,730.67/235,128.50 = 71,300.85/x
  3. Step 3: Cross multiply
    156,730.67x = 235,128.50 × 71,300.85
  4. Step 4: Simplify right side
    156,730.67x = 16,764,861,909.23
  5. Step 5: Solve for x
    x = 16,764,861,909.23/156,730.67
  6. Step 6: Final answer
    x = 106,966.06

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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.