Home / 166,384.30-249,612.90-66,519.40

Finding the Fourth Proportional to 166,384.30, 249,612.90 and 66,519.40

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Solution

The fourth proportional to 166,384.30, 249,612.90 and 66,519.40 is: 99,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,384.30 : 249,612.90 = 66,519.40 : x
  2. Step 2: Convert to fraction form
    166,384.30/249,612.90 = 66,519.40/x
  3. Step 3: Cross multiply
    166,384.30x = 249,612.90 × 66,519.40
  4. Step 4: Simplify right side
    166,384.30x = 16,604,100,340.26
  5. Step 5: Solve for x
    x = 16,604,100,340.26/166,384.30
  6. Step 6: Final answer
    x = 99,793.67

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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.