Home / 89,179.20-133,574.40-79,329.60

Finding the Fourth Proportional to 89,179.20, 133,574.40 and 79,329.60

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Solution

The fourth proportional to 89,179.20, 133,574.40 and 79,329.60 is: 118,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,179.20 : 133,574.40 = 79,329.60 : x
  2. Step 2: Convert to fraction form
    89,179.20/133,574.40 = 79,329.60/x
  3. Step 3: Cross multiply
    89,179.20x = 133,574.40 × 79,329.60
  4. Step 4: Simplify right side
    89,179.20x = 10,596,403,722.24
  5. Step 5: Solve for x
    x = 10,596,403,722.24/89,179.20
  6. Step 6: Final answer
    x = 118,821.47

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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.