Home / 166,338.90-249,544.80-82,139.40

Finding the Fourth Proportional to 166,338.90, 249,544.80 and 82,139.40

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Solution

The fourth proportional to 166,338.90, 249,544.80 and 82,139.40 is: 123,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,338.90 : 249,544.80 = 82,139.40 : x
  2. Step 2: Convert to fraction form
    166,338.90/249,544.80 = 82,139.40/x
  3. Step 3: Cross multiply
    166,338.90x = 249,544.80 × 82,139.40
  4. Step 4: Simplify right side
    166,338.90x = 20,497,460,145.12
  5. Step 5: Solve for x
    x = 20,497,460,145.12/166,338.90
  6. Step 6: Final answer
    x = 123,227.10

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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.