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Finding the Fourth Proportional to 144,057.60, 215,913.60 and 73,900.80

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Solution

The fourth proportional to 144,057.60, 215,913.60 and 73,900.80 is: 110,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,057.60 : 215,913.60 = 73,900.80 : x
  2. Step 2: Convert to fraction form
    144,057.60/215,913.60 = 73,900.80/x
  3. Step 3: Cross multiply
    144,057.60x = 215,913.60 × 73,900.80
  4. Step 4: Simplify right side
    144,057.60x = 15,956,187,770.88
  5. Step 5: Solve for x
    x = 15,956,187,770.88/144,057.60
  6. Step 6: Final answer
    x = 110,762.55

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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.