Home / 88,861.20-133,097.40-79,011.60

Finding the Fourth Proportional to 88,861.20, 133,097.40 and 79,011.60

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Solution

The fourth proportional to 88,861.20, 133,097.40 and 79,011.60 is: 118,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,861.20 : 133,097.40 = 79,011.60 : x
  2. Step 2: Convert to fraction form
    88,861.20/133,097.40 = 79,011.60/x
  3. Step 3: Cross multiply
    88,861.20x = 133,097.40 × 79,011.60
  4. Step 4: Simplify right side
    88,861.20x = 10,516,238,529.84
  5. Step 5: Solve for x
    x = 10,516,238,529.84/88,861.20
  6. Step 6: Final answer
    x = 118,344.55

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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.