Home / 122,500.60-183,756.30-69,191.80

Finding the Fourth Proportional to 122,500.60, 183,756.30 and 69,191.80

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Solution

The fourth proportional to 122,500.60, 183,756.30 and 69,191.80 is: 103,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,500.60 : 183,756.30 = 69,191.80 : x
  2. Step 2: Convert to fraction form
    122,500.60/183,756.30 = 69,191.80/x
  3. Step 3: Cross multiply
    122,500.60x = 183,756.30 × 69,191.80
  4. Step 4: Simplify right side
    122,500.60x = 12,714,429,158.34
  5. Step 5: Solve for x
    x = 12,714,429,158.34/122,500.60
  6. Step 6: Final answer
    x = 103,790.75

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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.