Home / 119,611.20-179,200.80-69,650.40

Finding the Fourth Proportional to 119,611.20, 179,200.80 and 69,650.40

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Solution

The fourth proportional to 119,611.20, 179,200.80 and 69,650.40 is: 104,349.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,611.20 : 179,200.80 = 69,650.40 : x
  2. Step 2: Convert to fraction form
    119,611.20/179,200.80 = 69,650.40/x
  3. Step 3: Cross multiply
    119,611.20x = 179,200.80 × 69,650.40
  4. Step 4: Simplify right side
    119,611.20x = 12,481,407,400.32
  5. Step 5: Solve for x
    x = 12,481,407,400.32/119,611.20
  6. Step 6: Final answer
    x = 104,349.82

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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.