Home / 156,730.80-235,096.20-77,998.80

Finding the Fourth Proportional to 156,730.80, 235,096.20 and 77,998.80

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Solution

The fourth proportional to 156,730.80, 235,096.20 and 77,998.80 is: 116,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.80 : 235,096.20 = 77,998.80 : x
  2. Step 2: Convert to fraction form
    156,730.80/235,096.20 = 77,998.80/x
  3. Step 3: Cross multiply
    156,730.80x = 235,096.20 × 77,998.80
  4. Step 4: Simplify right side
    156,730.80x = 18,337,221,484.56
  5. Step 5: Solve for x
    x = 18,337,221,484.56/156,730.80
  6. Step 6: Final answer
    x = 116,998.20

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1.5x scale

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.