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Finding the Fourth Proportional to 130,608.96, 180,239.52 and 70,992.96

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Solution

The fourth proportional to 130,608.96, 180,239.52 and 70,992.96 is: 97,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,608.96 : 180,239.52 = 70,992.96 : x
  2. Step 2: Convert to fraction form
    130,608.96/180,239.52 = 70,992.96/x
  3. Step 3: Cross multiply
    130,608.96x = 180,239.52 × 70,992.96
  4. Step 4: Simplify right side
    130,608.96x = 12,795,737,033.78
  5. Step 5: Solve for x
    x = 12,795,737,033.78/130,608.96
  6. Step 6: Final answer
    x = 97,969.83

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1.5x scale

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.