Home / 166,319.80-249,636.30-87,490.60

Finding the Fourth Proportional to 166,319.80, 249,636.30 and 87,490.60

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Solution

The fourth proportional to 166,319.80, 249,636.30 and 87,490.60 is: 131,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,319.80 : 249,636.30 = 87,490.60 : x
  2. Step 2: Convert to fraction form
    166,319.80/249,636.30 = 87,490.60/x
  3. Step 3: Cross multiply
    166,319.80x = 249,636.30 × 87,490.60
  4. Step 4: Simplify right side
    166,319.80x = 21,840,829,668.78
  5. Step 5: Solve for x
    x = 21,840,829,668.78/166,319.80
  6. Step 6: Final answer
    x = 131,318.28

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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.