Home / 443,891.04-665,868.96-128,349.60

Finding the Fourth Proportional to 443,891.04, 665,868.96 and 128,349.60

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Solution

The fourth proportional to 443,891.04, 665,868.96 and 128,349.60 is: 192,533.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,891.04 : 665,868.96 = 128,349.60 : x
  2. Step 2: Convert to fraction form
    443,891.04/665,868.96 = 128,349.60/x
  3. Step 3: Cross multiply
    443,891.04x = 665,868.96 × 128,349.60
  4. Step 4: Simplify right side
    443,891.04x = 85,464,014,668.42
  5. Step 5: Solve for x
    x = 85,464,014,668.42/443,891.04
  6. Step 6: Final answer
    x = 192,533.77

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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.