Home / 166,639.40-249,980.70-82,442.60

Finding the Fourth Proportional to 166,639.40, 249,980.70 and 82,442.60

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Solution

The fourth proportional to 166,639.40, 249,980.70 and 82,442.60 is: 123,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,639.40 : 249,980.70 = 82,442.60 : x
  2. Step 2: Convert to fraction form
    166,639.40/249,980.70 = 82,442.60/x
  3. Step 3: Cross multiply
    166,639.40x = 249,980.70 × 82,442.60
  4. Step 4: Simplify right side
    166,639.40x = 20,609,058,857.82
  5. Step 5: Solve for x
    x = 20,609,058,857.82/166,639.40
  6. Step 6: Final answer
    x = 123,674.59

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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.