Home / 166,121.30-249,218.40-53,782.40

Finding the Fourth Proportional to 166,121.30, 249,218.40 and 53,782.40

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Solution

The fourth proportional to 166,121.30, 249,218.40 and 53,782.40 is: 80,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,121.30 : 249,218.40 = 53,782.40 : x
  2. Step 2: Convert to fraction form
    166,121.30/249,218.40 = 53,782.40/x
  3. Step 3: Cross multiply
    166,121.30x = 249,218.40 × 53,782.40
  4. Step 4: Simplify right side
    166,121.30x = 13,403,563,676.16
  5. Step 5: Solve for x
    x = 13,403,563,676.16/166,121.30
  6. Step 6: Final answer
    x = 80,685.40

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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.